Best R-454B Heat Pumps

Heat Pumps with R-454B Refrigerant

R-454B is the refrigerant replacing R-410A in new heat pumps — 78% lower global warming potential (GWP of 466 vs 2,088 for R-410A). The industry transition is well underway, and about 168 of the models I track already use R-454B. If you're buying new, R-454B is the future-proof choice — R-410A will still be available for servicing, but new production is shifting. Performance is comparable or slightly better. The tool lets you compare R-454B models side by side.

520 heat pumps match this filter. Showing top 50 by SEER2.

Name

Brand

Refrigerant

Performance

Operation

Carrier 45M Series 6k BTU Wall Mount
$3,400 at HVACDirect

CARRIER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.14	4,100	-	-	1.29	7,500
5F	2.0	13,500	1.15	900	2.0	13,500
17F	2.41	11,000	1.95	1,600	2.26	14,600
47F	4.0	9,000	5.86	4,000	3.19	17,200
95F	5.17	6,000	5.05	3,100	3.5	16,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$3,400
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 6k BTU Wall Mount
$2,492 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	1.98	810	-	-	1.93	9,000
5F	2.38	12,600	2.39	1,140	2.38	12,600
17F	3.45	6,000	2.74	1,310	2.69	14,400
47F	4.88	9,000	4.15	1,700	3.31	20,000
95F	6.28	6,000	4.15	1,700	3.31	14,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,492
Energy cost	-
Total cost	-

Carrier 45M Series 9k BTU Wall Mount
$3,600 at HVACDirect

CARRIER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.14	4,100	-	-	1.29	7,500
5F	2.0	13,500	1.15	900	2.0	13,500
17F	2.41	11,000	1.95	1,600	2.26	14,600
47F	3.59	12,000	5.86	4,000	3.19	17,200
95F	4.98	9,000	5.05	3,100	3.5	16,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$3,600
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 9k BTU Wall Mount
$2,811 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	2.05	1,470	-	-	2.01	12,000
5F	2.2	14,700	2.2	1,800	2.2	14,700
17F	3.47	7,700	2.44	2,000	2.39	16,300
47F	4.95	12,000	5.05	3,100	2.93	21,300
95F	5.38	9,000	4.58	2,500	2.78	15,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,811
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 12k BTU Wall Mount
$3,158 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	2.01	1,510	-	-	2.01	13,200
5F	2.2	16,200	2.26	1,850	2.2	16,200
17F	3.41	9,300	2.54	2,080	2.49	18,200
47F	4.2	13,200	5.05	3,100	3.22	23,500
95F	4.51	12,000	4.58	2,500	2.84	16,100

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$3,158
Energy cost	-
Total cost	-

Carrier 45M Series 12k BTU Wall Mount
$3,900 at HVACDirect

CARRIER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.14	4,100	-	-	1.29	7,500
5F	2.0	13,500	1.15	900	2.0	13,500
17F	2.41	11,000	1.95	1,600	2.26	14,600
47F	3.59	12,000	5.86	4,000	3.19	17,200
95F	4.19	12,000	5.05	3,100	3.5	16,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$3,900
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 9k BTU Wall Mount
$2,465 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	1.96	670	-	-	1.95	7,450
5F	1.8	9,600	2.29	860	1.8	9,600
17F	2.66	5,900	2.32	1,030	2.39	11,500
47F	4.85	9,600	5.69	3,300	2.66	15,900
95F	4.55	9,000	4.47	3,200	3.41	12,200

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,465
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 9k BTU Wall Mount
$2,241 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	1.41	480	-	-	1.43	5,330
5F	1.8	8,100	1.86	700	1.8	8,100
17F	2.69	6,700	2.22	910	2.15	10,200
47F	4.44	10,900	5.69	3,300	2.68	15,900
95F	4.55	9,000	4.47	3,200	3.41	12,200

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,241
Energy cost	-
Total cost	-

Carrier 45M Series 9k BTU Wall Mount
$2,560 at HVACDirect

CARRIER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.17	2,000	-	-	1.11	5,100
5F	1.8	11,500	1.72	4,100	1.8	11,500
17F	2.71	9,800	2.22	5,300	1.75	12,800
47F	3.74	12,000	4.84	3,800	3.35	16,000
95F	4.55	9,000	8.57	3,800	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,560
Energy cost	-
Total cost	-

ACiQ 9k BTU Wall Mount
$1,495 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.17	2,000	-	-	1.11	5,100
5F	1.8	11,500	1.72	4,100	1.8	11,500
17F	2.71	9,800	2.22	5,300	1.75	12,800
47F	3.74	12,000	4.84	3,800	3.35	16,000
95F	4.55	9,000	8.57	3,800	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,495
Energy cost	-
Total cost	-

Senville SENA Series 9k BTU Wall Mount
$1,300 at Amazon

SENVILLE

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.17	2,000	-	-	1.11	5,100
5F	1.8	11,500	1.72	4,100	1.8	11,500
17F	2.71	9,800	2.22	5,300	1.75	12,800
47F	3.74	12,000	4.84	3,800	3.35	16,000
95F	4.55	9,000	8.57	3,800	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,300
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 9k BTU Floor Mount
$1,698 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.04	2,700	-	-	1.02	4,700
5F	1.84	11,300	1.83	2,000	1.84	11,300
17F	2.71	9,800	2.49	2,800	2.17	12,200
47F	4.4	9,000	4.96	4,400	3.5	16,100
95F	4.4	9,000	5.71	3,700	3.49	13,700

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,698
Energy cost	-
Total cost	-

ACiQ 9k BTU Floor Mount
$1,900 at HVACDirect

ACIQ

R454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.04	2,700	-	-	1.02	4,700
5F	1.84	11,300	1.83	2,000	1.84	11,300
17F	2.71	9,800	2.49	2,800	2.17	12,200
47F	4.4	9,000	4.96	4,400	3.5	16,100
95F	4.4	9,000	5.71	3,700	3.49	13,700

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,900
Energy cost	-
Total cost	-

Durastar DRA Series 9k BTU Floor Mount
$2,169 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.04	2,700	-	-	1.02	4,700
5F	1.84	11,300	1.83	2,000	1.84	11,300
17F	2.71	9,800	2.49	2,800	2.17	12,200
47F	4.4	9,000	4.96	4,400	3.5	16,100
95F	4.4	9,000	5.71	3,700	3.49	13,700

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,169
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 9k BTU Floor Mount
$1,577 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	0.84	800	-	-	1.42	4,600
5F	2.27	8,600	1.78	1,700	2.27	8,600
17F	2.9	9,000	3.35	3,200	2.49	9,600
47F	4.32	9,000	5.54	5,100	3.38	12,700
95F	4.71	9,000	5.86	4,000	3.86	12,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,577
Energy cost	-
Total cost	-

Durastar DRA Series 9k BTU Wall Mount
$1,492 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.07	2,000	-	-	1.24	5,800
5F	1.8	11,500	1.8	4,000	1.8	11,500
17F	2.59	10,000	2.34	5,200	1.75	12,800
47F	3.63	12,000	5.57	3,800	3.3	16,000
95F	4.4	9,000	8.79	3,600	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,492
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 9k BTU Wall Mount
$1,419 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.07	2,000	-	-	1.24	5,800
5F	1.8	11,500	1.8	4,000	1.8	11,500
17F	2.59	10,000	2.34	5,200	1.75	12,800
47F	3.63	12,000	5.57	3,800	3.3	16,000
95F	4.4	9,000	8.79	3,600	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,419
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 9k BTU Wall Mount
$1,419 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.07	2,000	-	-	1.24	5,800
5F	1.8	11,500	1.8	4,000	1.8	11,500
17F	2.59	10,000	2.34	5,200	1.75	12,800
47F	3.63	12,000	5.57	3,800	3.3	16,000
95F	4.4	9,000	8.79	3,600	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,419
Energy cost	-
Total cost	-

Durastar DRA Series 9k BTU Floor Mount
$1,757 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	0.84	800	-	-	1.42	4,600
5F	2.27	8,600	1.78	1,700	2.27	8,600
17F	2.9	9,000	3.35	3,200	2.49	9,600
47F	4.32	9,000	5.54	5,100	3.38	12,700
95F	4.71	9,000	5.86	4,000	3.86	12,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,757
Energy cost	-
Total cost	-

Midea D5F Series 9k BTU Floor Mount
$1,579 at MiniSplitWarehouse

MIDEA

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	0.84	800	-	-	1.42	4,600
5F	2.27	8,600	1.78	1,700	2.27	8,600
17F	2.9	9,000	3.35	3,200	2.49	9,600
47F	4.32	9,000	5.54	5,100	3.38	12,700
95F	4.8	9,000	5.86	4,000	3.86	12,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,579
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 15k BTU Wall Mount
$3,633 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	1.81	2,720	-	-	1.82	16,500
5F	2.06	22,200	2.15	3,660	2.06	22,200
17F	3.08	10,600	2.1	4,370	2.1	26,500
47F	4.48	16,500	5.39	5,150	3.16	28,400
95F	4.31	15,000	4.17	3,700	2.54	19,100

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$3,633
Energy cost	-
Total cost	-

Carrier 45M Series 18k BTU Wall Mount
$4,600 at HVACDirect

CARRIER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	0.98	2,400	-	-	1.45	11,900
5F	2.34	22,600	1.96	9,300	2.34	22,600
17F	3.01	19,300	2.26	11,500	2.35	23,200
47F	4.41	20,000	5.36	9,700	3.57	29,700
95F	4.4	18,000	3.93	12,600	3.59	27,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$4,600
Energy cost	-
Total cost	-

Carrier 45M Series 6k BTU Wall Mount
$2,300 at HVACDirect

CARRIER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.09	2,300	-	-	1.23	3,200
5F	2.4	7,700	1.79	3,600	2.4	7,700
17F	2.79	7,900	2.49	5,100	2.38	8,600
47F	4.19	7,000	3.66	3,000	2.96	11,000
95F	5.33	6,000	3.97	2,300	3.89	12,600

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,300
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 12k BTU Wall Mount
$2,936 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	0.95	1,130	-	-	0.93	8,160
5F	1.8	12,300	1.42	1,700	1.8	12,300
17F	2.72	7,600	1.85	2,210	1.85	16,000
47F	3.92	12,300	3.87	3,300	2.24	19,100
95F	3.91	12,000	2.12	1,300	2.15	14,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,936
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 12k BTU Wall Mount
$2,643 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	1.24	550	-	-	1.26	6,780
5F	1.8	10,100	1.63	780	1.8	10,100
17F	2.64	9,000	2.05	980	2.11	12,000
47F	3.84	14,400	4.0	1,500	2.98	18,100
95F	3.91	12,000	4.23	1,300	2.75	14,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,643
Energy cost	-
Total cost	-

Mitsubishi Electric M-Series 17k BTU Wall Mount
$4,230 (2 stores)

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-10.0F	1.84	2,760	-	-	1.83	17,500
5F	2.06	23,600	2.06	3,730	2.06	23,600
17F	3.0	12,700	2.14	4,450	2.16	28,200
47F	3.58	17,000	5.39	5,150	3.06	30,200
95F	3.82	17,200	4.17	3,700	2.67	21,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$4,230
Energy cost	-
Total cost	-

Carrier 45M Series 12k BTU Wall Mount
$2,700 at HVACDirect

CARRIER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.17	2,000	-	-	1.25	5,900
5F	1.8	11,500	1.72	4,100	1.8	11,500
17F	2.71	9,800	2.22	5,300	1.75	12,800
47F	3.74	12,000	4.84	3,800	3.35	16,000
95F	3.95	12,000	8.57	3,800	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,700
Energy cost	-
Total cost	-

ACiQ 12k BTU Wall Mount
$1,650 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.17	2,000	-	-	1.25	5,900
5F	1.8	11,500	1.72	4,100	1.8	11,500
17F	2.71	9,800	2.22	5,300	1.75	12,800
47F	3.74	12,000	4.84	3,800	3.35	16,000
95F	3.91	12,000	8.57	3,800	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,650
Energy cost	-
Total cost	-

Senville SENA Series 12k BTU Wall Mount
$1,400 at Amazon

SENVILLE

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.17	2,000	-	-	1.25	5,900
5F	1.8	11,500	1.72	4,100	1.8	11,500
17F	2.71	9,800	2.22	5,300	1.75	12,800
47F	3.74	12,000	4.84	3,800	3.35	16,000
95F	3.91	12,000	8.57	3,800	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,400
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 6k BTU Wall Mount
$1,339 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.09	2,300	-	-	1.22	3,900
5F	2.29	7,500	1.65	3,100	2.29	7,500
17F	2.5	7,600	2.1	3,800	2.04	8,700
47F	3.8	7,000	4.94	3,200	2.61	10,700
95F	4.63	6,000	4.88	2,500	3.62	11,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,339
Energy cost	-
Total cost	-

Durastar DRA Series 6k BTU Wall Mount
$1,056 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.09	2,300	-	-	1.22	3,900
5F	2.29	7,500	1.65	3,100	2.29	7,500
17F	2.5	7,600	2.1	3,800	2.04	8,700
47F	3.8	7,000	4.94	3,200	2.61	10,700
95F	4.63	6,000	4.88	2,500	3.62	11,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,056
Energy cost	-
Total cost	-

ACiQ ES Series 18k BTU Multi-Zone
$2,390 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	2.28	3,500	-	-	1.52	7,800
5F	2.3	13,500	2.28	3,500	2.3	13,500
17F	2.81	13,600	2.78	3,800	2.5	14,000
47F	3.79	19,000	4.77	5,700	3.88	21,600
95F	4.09	18,000	3.96	5,400	3.33	21,600

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,390
Energy cost	-
Total cost	-

ACiQ 27k BTU Multi-Zone
$2,940 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	2.18	5,200	-	-	1.3	11,000
5F	2.0	19,000	2.43	5,400	2.0	19,000
17F	2.61	18,400	2.93	6,000	2.3	19,000
47F	3.8	27,000	4.92	8,400	3.54	29,000
95F	3.8	27,000	4.22	7,200	3.44	32,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,940
Energy cost	-
Total cost	-

ACiQ 12k BTU Wall Mount
$1,665 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.1	3,000	-	-	1.04	4,800
5F	1.88	11,300	1.99	2,100	1.88	11,300
17F	2.71	9,800	2.66	2,900	2.14	12,400
47F	3.86	12,000	4.96	4,400	3.5	16,100
95F	3.66	12,000	5.71	3,700	3.57	14,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,665
Energy cost	-
Total cost	-

Durastar DRA Series 12k BTU Floor Mount
$2,386 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.1	3,000	-	-	1.04	4,800
5F	1.88	11,300	1.99	2,100	1.88	11,300
17F	2.71	9,800	2.66	2,900	2.14	12,400
47F	3.86	12,000	4.96	4,400	3.5	16,100
95F	3.66	12,000	5.71	3,700	3.57	14,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,386
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 12k BTU Floor Mount
$1,729 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.1	3,000	-	-	1.04	4,800
5F	1.88	11,300	1.99	2,100	1.88	11,300
17F	2.71	9,800	2.66	2,900	2.14	12,400
47F	3.86	12,000	4.96	4,400	3.5	16,100
95F	3.66	12,000	5.71	3,700	3.57	14,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,729
Energy cost	-
Total cost	-

ACiQ 19k BTU Multi-Zone
$3,440 at HVACDirect

ACIQ

R454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	2.28	3,500	-	-	1.3	10,000
5F	2.0	19,000	2.28	3,500	2.0	19,000
17F	2.7	17,600	2.78	3,800	2.2	19,000
47F	3.99	20,000	4.77	5,700	3.44	27,000
95F	4.38	19,000	3.96	5,400	3.65	28,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$3,440
Energy cost	-
Total cost	-

Mitsubishi Electric P series 12k BTU Ceiling Cassette
$5,216 at GotDuctless

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-4.0F	1.14	1,600	-	-	2.14	7,800
5F	2.3	8,800	1.26	1,800	2.3	8,800
17F	2.8	10,700	1.57	2,300	2.8	10,700
47F	3.81	20,000	5.86	4,200	3.81	20,000
95F	5.02	12,000	5.98	4,900	4.98	12,400

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$5,216
Energy cost	-
Total cost	-

Mitsubishi Electric P series 18k BTU Ceiling Cassette
$6,167 at GotDuctless

MITSUBISHI ELECTRIC

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-4.0F	1.12	1,600	-	-	2.17	8,800
5F	2.2	9,400	1.26	1,800	2.2	9,400
17F	2.61	12,000	1.57	2,300	2.61	12,000
47F	3.7	23,000	6.15	4,200	3.74	24,000
95F	4.03	18,000	6.11	5,000	3.99	18,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$6,167
Energy cost	-
Total cost	-

Midea D5F Series 12k BTU Floor Mount
$1,659 at MiniSplitWarehouse

MIDEA

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	0.81	800	-	-	1.42	4,600
5F	2.51	8,900	1.78	1,700	2.51	8,900
17F	2.87	9,000	3.35	3,200	2.49	9,600
47F	3.91	12,000	5.54	5,100	3.15	12,900
95F	3.74	12,000	5.86	4,000	3.37	13,100

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,659
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 12k BTU Floor Mount
$1,628 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	0.81	800	-	-	1.42	4,600
5F	2.51	8,900	1.78	1,700	2.51	8,900
17F	2.87	9,000	3.35	3,200	2.49	9,600
47F	3.91	12,000	5.54	5,100	3.15	12,900
95F	3.74	12,000	5.86	4,000	3.37	13,100

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,628
Energy cost	-
Total cost	-

ACiQ 9k BTU Wall Mount
$1,060 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	1.76	4,200	-	-	1.53	5,000
5F	2.33	8,200	2.11	3,600	2.33	8,200
17F	2.8	8,600	2.47	3,800	2.47	10,200
47F	3.66	10,000	5.35	4,200	3.36	14,200
95F	4.32	9,000	4.33	3,100	3.9	10,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,060
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 9k BTU Wall Mount
$1,299 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	1.76	4,200	-	-	1.53	5,000
5F	2.33	8,200	2.11	3,600	2.33	8,200
17F	2.8	8,600	2.47	3,800	2.47	10,200
47F	3.66	10,000	5.35	4,200	3.36	14,200
95F	4.32	9,000	4.33	3,100	3.9	10,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,299
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 9k BTU Wall Mount
$1,299 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	1.76	4,200	-	-	1.53	5,000
5F	2.33	8,200	2.11	3,600	2.33	8,200
17F	2.8	8,600	2.47	3,800	2.47	10,200
47F	3.66	10,000	5.35	4,200	3.36	14,200
95F	4.32	9,000	4.33	3,100	3.9	10,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,299
Energy cost	-
Total cost	-

Durastar DRA Series 12k BTU Floor Mount
$1,878 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	0.81	800	-	-	1.42	4,600
5F	2.51	8,900	1.78	1,700	2.51	8,900
17F	2.87	9,000	3.35	3,200	2.49	9,600
47F	3.91	12,000	5.54	5,100	3.15	12,900
95F	3.74	12,000	5.86	4,000	3.37	13,100

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,878
Energy cost	-
Total cost	-

Durastar DRA Series 9k BTU Wall Mount
$1,080 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	1.76	4,200	-	-	1.53	5,000
5F	2.33	8,200	2.11	3,600	2.33	8,200
17F	2.8	8,600	2.47	3,800	2.47	10,200
47F	3.66	10,000	5.35	4,200	3.36	14,200
95F	4.32	9,000	4.33	3,100	3.9	10,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,080
Energy cost	-
Total cost	-

ACiQ 9k BTU Wall Mount
$960 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	1.24	1,100	-	-	1.3	3,500
5F	2.21	7,300	1.92	3,600	2.21	7,300
17F	2.77	8,800	1.71	1,400	2.77	8,800
47F	4.19	10,000	4.71	4,500	3.83	12,800
95F	4.4	9,000	4.23	2,600	3.53	13,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$960
Energy cost	-
Total cost	-

Cooper & Hunter CH Series 9k BTU Ceiling Cassette
$2,083 at MiniSplitWarehouse

COOPER&HUNTER

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	0.56	900	-	-	1.1	5,100
5F	1.83	10,600	1.85	4,100	1.83	10,600
17F	2.44	9,000	2.17	5,100	2.0	11,900
47F	3.71	10,900	3.71	3,800	3.02	13,900
95F	4.25	9,000	7.82	4,000	3.29	12,900

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$2,083
Energy cost	-
Total cost	-

ACiQ BZ33 Series 36k BTU Multi-Zone
$3,595 at HVACDirect

ACIQ

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-13.0F	1.86	7,000	-	-	1.34	14,600
5F	2.0	26,000	1.92	7,200	2.0	26,000
17F	2.4	26,600	2.93	8,000	2.4	26,600
47F	3.5	37,000	4.88	10,000	3.19	42,500
95F	3.52	36,000	4.4	9,000	3.0	42,000

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$3,595
Energy cost	-
Total cost	-

Durastar DRA Series 12k BTU Wall Mount
$1,696 at GotDuctless

DURASTAR

R-454B

Temp	COP	BTU (rated)	COP (min)	BTU (min)	COP (max)	BTU (max)
-22.0F	1.07	2,000	-	-	1.25	5,900
5F	1.8	11,500	1.8	4,000	1.8	11,500
17F	2.59	10,000	2.34	5,200	1.75	12,800
47F	3.63	12,000	4.84	3,800	3.35	16,000
95F	3.86	12,000	8.79	3,600	3.35	13,500

kWh/yr (heat pump)	-
kWh suppl. heat	-
kWh total/yr	-
Hours over capacity	-
Hours short cycling	-
Purchase cost	$1,696
Energy cost	-
Total cost	-

Frequently Asked Questions

What is R-454B and why should I care?

R-454B is the low-GWP refrigerant replacing R-410A. R-410A has a global warming potential of 2,088 — each pound has 2,088x the climate impact of CO2. R-454B cuts that by 78% to 466. If you care about environmental impact, that matters. If you don't, the practical reason: R-454B is the future, and in 10-15 years when your unit needs a refrigerant top-off, R-454B will be easier and cheaper to source than R-410A.

Is R-454B as efficient as R-410A?

Yes, and the data suggests slightly better on average. The R-454B units I track perform comparably or better than R-410A equivalents on SEER2 and COP metrics. The refrigerant transition isn't a performance sacrifice — it's an environmental improvement at equivalent or better efficiency. You're not giving anything up.

Is R-454B safe? I heard it's flammable.

R-454B is classified A2L — mildly flammable — which sounds scarier than it is. It requires an ignition source and specific concentration to burn, and it's much harder to ignite than propane or natural gas. Building codes have been updated to allow it in residential use, with leak detection required in some configurations. Every major HVAC manufacturer is shipping R-454B equipment. This has been extensively studied and deemed safe for homes.

Should I avoid buying R-410A now?

Not necessarily — R-410A works fine and will be serviceable for years. But if R-454B is available at a similar price, I'd go with it for long-term serviceability and lower environmental impact. About 168 models in my database already use R-454B, so you have plenty of options. The transition is happening regardless — buying R-454B now means you're ahead of the curve.

2 What you have now

Heating

at $/therm, % efficient

Cooling

Ducts

A ducted heat pump would use

When it's cold

Electricity $/kWh

3 The house

Estimate from its age

Customize walls, windows, air leaks →

From last winter's total

includes hot water

From your bills (most accurate)

Load a file (CSV, XML) Amounts are in

Advanced

My System

What would a heat pump save in your home?

Each model is run hour by hour against your local weather, with your current heating covering whatever it can't. Describe your home on the left; results update as you type.

Name	Brand	SEER2	HSPF2	Works to	Price	Cost/Year

Frequently Asked Questions

What is R-454B and why should I care?

Is R-454B as efficient as R-410A?

Is R-454B safe? I heard it's flammable.

Should I avoid buying R-410A now?

This is a prototype I'm working on, and would love feedback - send any thoughts/comments/suggestions for improvement to tophatmonkey@gmail.com

This page is made to help you figure out heat pumps. Heat pumps used to have universally terrible performance when it got below 40 degrees, but in recent years, that's changed - some now work well down to -22! But that's not true for all heat pumps, which is why I made this tool to use the actual performance metrics to estimate how each would behave with your house, in your specific location and your weather.

How?

First, use the map to choose where your house is.
Using that, we get the hourly weather for your location for the full year.
Then, use the text boxes to describe your house - where is it, how big it is, how well insulated, and how much your electricity costs.
Using that, we make a model of your house and estimate heat loss for every hour.
Using those together, along with capacity/efficiency data at different temps for lots of heat pumps, we estimate how much electricity each one would use, and figure out which ones won't be able to keep up - look for "Hours Over Capacity" to see which heat pumps aren't quite keeping up. A little of that is OK, a lot, not so much.
The page combines the purchase price (amortized) with the annual electricity cost to show a blended cost per year. A more efficient heat pump might cost more upfront, but if you need a lot of heating or cooling, it might end up being cheaper overall. We sort by that annual cost.

This page may look kind of crappy, but don't judge this book by its cover! It's more sophisticated than most pages that look a lot nicer.

Heat pumps are pretty awesome. They're basically air conditioners that can run in either direction, and because they move heat between in and outside instead of just creating it, they can be more than 100% efficient! In many cases, they're in the range of 400% efficient, or even more. You can get more heat in your house using natural gas to generate electricity to run a heat pump than if you burn the gas directly in your house. Crazy!

This tool is for people who are interested in buying a heat pump without going through a contractor, or for any contractors who might find comparisons useful. In many cases, especially with minisplits, it's not too hard to do it yourself, and much cheaper than hiring a professional. But they can be a bit tricky to compare when it comes to efficiency versus cost tradeoffs, which is why I built this tool to help you play around the numbers and figure out what might be right for you.

If you decide to DIY this, though, I'd advise a few things. First, watch a bunch of YouTube DIY videos, but be aware that it's not quite as simple to do a good job of it as they show. If you get one of the MrCool DIY series pumps, you can just use their pre-evacuated linesets, and I've heard that's pretty simple. But if you go with one of the others with normal linesets, you need a vacuum pump, torque wrench, and the other tools they recommend, but you also need a digital micron gauge, a flaring tool, and you probably want a coring tool with shutoff valve, and you might want to do a pressure test with nitrogen, which means you probably need a pressure regulator. You probably also want a higher quality vacuum pump than most YouTubers show. Many YouTubers use an analog manifold, but for pulling a deep vacuum and making sure it holds, that's like trying to measure inches with your car's odometer - the level to which you need to measure is invisible on that scale. Instead, you want a digital micron gauge. This isn't to scare you off, I did my own this way and it wasn't hard once I figured out what I needed, this is just to make it so you don't get halfway into your project before you realize the real cost of doing this right.

Heat Pumps with R-454B Refrigerant

Frequently Asked Questions

What is R-454B and why should I care?

Is R-454B as efficient as R-410A?

Is R-454B safe? I heard it's flammable.

Should I avoid buying R-410A now?

Heat Pumps with R-454B Refrigerant

What would a heat pump save in your home?

Frequently Asked Questions

Building Heat Loss Details

Heat Loss Breakdown