FUJITSU Heat Pumps

Compare 28 FUJITSU heat pumps by efficiency and total cost of ownership. Operation costs are calculated based on your location and home — enter your details above for personalized estimates.

Name

Brand

Refrigerant

Performance

Operation

Fujitsu 9,000 BTU 33.1 SEER Wall Mounted Single Zone System - R410A
$2,014 at GotDuctless

FUJITSU

R-410A

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-6.0F	2.39	3,100	2.39	3,100	1.96	14,000
5F	2.15	15,400	2.93	4,000	2.15	15,400
17F	3.61	7,400	3.63	5,200	2.28	16,000
47F	5.33	12,000	5.34	3,100	3.34	22,000
95F	5.28	9,000	8.26	3,100	4.14	12,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,014
Energy Cost	-
10-Year Cost	-

Fujitsu 9,000 BTU 33 SEER Extra Low Temp Wall Mounted Single Zone System - R410A
$2,056 at GotDuctless

FUJITSU

R-410A

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-15.0F	1.21	2,100	1.21	2,100	1.46	11,100
5F	2.01	15,400	2.13	4,000	2.01	15,400
17F	3.5	7,400	2.67	5,200	2.12	16,000
47F	5.33	12,000	5.34	3,100	3.34	22,000
95F	5.28	9,000	8.26	3,100	4.14	12,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,056
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH09KZAS & AOUH09KZAH1 9,000 BTU 33.1 SEER2 Extra Low Temperature Wall Mounted Heat Pump System - R32
$2,656 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-15.0F	2.23	1,370	2.23	1,370	1.7	11,400
5F	2.26	15,400	3.09	1,900	2.26	15,400
17F	3.6	7,500	3.39	2,200	2.49	17,500
47F	5.33	12,000	5.13	3,500	3.08	23,000
95F	5.5	9,000	8.26	3,100	3.98	12,500

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,656
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH12KZAS & AOUH12KZAH1 12,000 BTU 30.5 SEER2 Extra Low Temperature Wall Mounted Heat Pump System - R32
$2,908 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-15.0F	2.74	1,400	2.74	1,400	1.81	12,200
5F	2.16	16,600	3.36	1,950	2.16	16,600
17F	3.45	10,000	3.39	2,200	2.44	18,700
47F	4.64	16,000	5.13	3,500	3.07	23,600
95F	4.69	12,000	8.26	3,100	3.84	16,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,908
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH09KMAS & AOUH09KMAS1 9,000 BTU 30 SEER2 Altair 700 Wall Mounted Heat Pump System - R32
$2,055 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.32	10,300	2.55	2,000	2.32	10,300
17F	3.24	7,400	2.93	1,700	2.62	12,600
47F	4.63	12,000	5.86	2,800	2.64	14,500
95F	4.8	9,000	6.99	3,100	3.77	12,100

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,055
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH12KMAS & AOUH12KMAS1 12,000 BTU 27.5 SEER2 Altair 700 Wall Mounted Heat Pump System - R32
$2,263 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.39	10,600	2.55	2,000	2.39	10,600
17F	3.11	8,700	2.93	1,700	2.65	13,200
47F	4.32	14,000	5.86	2,800	2.5	15,000
95F	3.95	12,000	6.99	3,100	3.26	13,800

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,263
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH15KZAS & AOUH15KZAH1 15,000 BTU 27.5 SEER2 Extra Low Temperature Orion XLTH Wall Mounted Heat Pump System - R32
$3,121 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-15.0F	0.66	1,900	0.66	1,900	1.92	16,400
5F	2.1	21,000	3.49	2,500	2.1	21,000
17F	3.44	11,400	3.81	2,600	2.35	22,000
47F	4.59	18,000	5.07	4,150	3.26	25,000
95F	4.34	14,500	6.06	3,100	3.28	19,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$3,121
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH09KPAS & AOUH09KPAS1 9,000 BTU 26 SEER2 Altair 500 Wall Mounted Heat Pump System - R32
$1,494 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.29	7,100	2.64	1,800	2.29	7,100
17F	3.07	6,400	3.21	2,300	2.64	9,000
47F	4.19	10,000	6.39	2,400	3.38	13,600
95F	3.66	9,000	7.57	3,100	2.9	11,200

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$1,494
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH18KZAS & AOUH18KZAH1 18,000 BTU 27.5 SEER2 Orion XLTH Extra Low Temperature Wall Mounted Heat Pump System - R32
$3,847 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-15.0F	3.1	3,700	3.1	3,700	1.65	19,110
5F	2.08	24,800	3.57	5,000	2.02	25,400
17F	3.32	13,600	3.72	5,200	2.3	27,200
47F	4.37	21,600	5.45	8,000	3.21	31,800
95F	4.09	18,000	5.13	7,000	3.13	26,200

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$3,847
Energy Cost	-
10-Year Cost	-

Fujitsu 15,000 BTU 25.3 SEER Extra Low Temp Wall Mounted Single Zone System - R410A
$2,575 at GotDuctless

FUJITSU

R-410A

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-15.0F	1.21	2,100	1.21	2,100	1.66	16,300
5F	2.34	17,500	2.13	4,000	2.12	21,000
17F	3.16	11,200	2.67	5,200	2.3	21,500
47F	4.59	18,000	6.06	3,100	3.2	23,900
95F	4.09	14,500	6.06	3,100	3.46	18,400

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,575
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH12KPAS & AOUH12KPAS1 12,000 BTU 24 SEER2 Altair 500 Wall Mounted Heat Pump System - R32
$1,608 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.29	8,500	2.56	2,100	2.29	8,500
17F	2.86	8,700	4.05	2,900	2.69	11,000
47F	3.8	14,000	6.09	2,700	3.69	17,000
95F	3.41	12,000	6.99	3,100	2.95	13,600

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$1,608
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH24KZAS & AOUH24KZAH1 24,000 BTU 24 SEER2 Orion XLTH Extra Low Temperature Wall Mounted Heat Pump System - R32
$4,346 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-15.0F	3.14	3,540	3.14	3,540	1.65	19,110
5F	2.14	25,200	3.91	5,200	2.06	25,800
17F	3.11	15,900	4.06	5,400	2.33	28,900
47F	3.97	25,200	5.59	8,200	3.04	36,800
95F	3.66	22,000	6.67	9,100	2.78	28,900

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$4,346
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH18KPAS & AOUH18KPAS1 18,000 BTU 24 SEER2 Altair 500 Wall Mounted System - R32
$2,609 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.21	18,500	3.97	2,300	2.21	18,500
17F	2.63	11,300	4.52	2,620	3.03	21,700
47F	4.19	18,000	5.79	4,150	3.35	24,000
95F	3.66	18,000	5.86	4,000	3.08	20,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,609
Energy Cost	-
10-Year Cost	-

Fujitsu AOUH30KPAS1 & ASUH30KPAS 30,000 BTU 22.0 SEER2 Altair 500 Wall Mounted Heat Pump System- R32
$3,819 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.2	25,800	3.86	5,000	2.2	25,800
17F	3.04	19,600	4.0	5,730	2.4	30,100
47F	3.62	30,000	5.19	9,200	3.4	34,800
95F	3.43	30,000	6.45	9,900	2.78	32,400

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$3,819
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH24KPAS & AOUH24KPAS1 24,000 BTU 21.5 SEER2 Altair 500 Wall Mounted System - R32
$2,819 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.13	20,000	3.97	2,300	2.13	20,000
17F	3.03	14,800	4.52	2,620	2.5	24,300
47F	3.8	24,000	5.79	4,150	2.69	28,500
95F	3.43	22,000	5.86	4,000	2.23	24,400

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$2,819
Energy Cost	-
10-Year Cost	-

Fujitsu ABUH36KUAS & AOUH36KUAS1 36,000 BTU 21.3 SEER2 Ceiling Suspended Heat Pump System - R32
$6,196 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	4.3	6,900	4.3	6,900	1.94	27,000
5F	2.1	31,000	4.52	7,400	2.1	31,000
17F	3.11	25,400	4.6	8,000	2.37	34,500
47F	3.95	38,000	4.28	9,200	3.05	43,000
95F	3.29	36,000	6.7	9,600	2.8	39,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$6,196
Energy Cost	-
10-Year Cost	-

Fujitsu ASUH36KPAS & AOUH36KPAS1 36,000 BTU 21 SEER2 Altair 500 Wall Mounted Heat Pump System - R32
$5,228 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.2	25,800	3.86	5,000	2.2	25,800
17F	2.89	22,400	4.0	5,730	2.4	30,100
47F	3.3	34,000	5.19	9,200	2.9	36,800
95F	2.85	33,000	6.45	9,900	2.62	34,100

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$5,228
Energy Cost	-
10-Year Cost	-

Fujitsu ARUH12KUAS & AOUH12KUAS1 12,000 BTU 19.1 SEER2 Mid Static Ducted Heat Pump System - R32
from $3,189 (2 stores)

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	3.26	2,000	3.26	2,000	1.9	14,520
5F	2.06	16,100	3.74	2,300	2.06	16,100
17F	1.36	10,600	3.91	2,400	2.16	16,900
47F	3.45	16,000	5.54	3,400	2.75	17,800
95F	3.82	12,000	7.57	3,100	2.71	13,600

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$3,189
Energy Cost	-
10-Year Cost	-

Fujitsu ABUH18KUAS & AOUH18KUAS1 18,000 BTU 23.4 SEER2 Ceiling Suspended Heat Pump System - R32
from $3,659 (3 stores)

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	2.93	2,100	2.93	2,100	2.17	14,570
5F	2.39	17,300	3.63	2,600	2.39	17,300
17F	2.91	16,100	4.05	2,900	2.46	19,500
47F	3.31	21,600	5.05	3,100	2.5	24,000
95F	3.56	18,000	5.34	3,100	2.75	20,100

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$3,659
Energy Cost	-
10-Year Cost	-

Fujitsu ABUH30KUAS & AOUH30KUAS1 30,000 BTU 20.8 SEER2 Ceiling Suspended Heat Pump System - R32
from $5,490 (3 stores)

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	3.07	6,500	3.07	6,500	1.94	25,190
5F	2.18	29,400	3.64	7,700	2.18	29,400
17F	2.96	22,200	3.92	8,300	2.37	31,900
47F	3.84	32,000	3.97	9,200	2.83	38,000
95F	3.43	30,000	6.12	9,600	3.14	35,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$5,490
Energy Cost	-
10-Year Cost	-

Fujitsu ARUH36KUAS & AOUH36KUAS1 36,000 BTU 18 SEER2 Mid Static Ducted Heat Pump System - R32
$6,837 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	3.57	6,700	3.57	6,700	1.95	27,000
5F	2.08	31,000	3.87	7,400	2.08	31,000
17F	2.8	25,400	4.11	8,000	2.35	34,500
47F	3.52	38,000	3.97	9,200	3.06	43,000
95F	3.06	36,000	6.12	9,600	2.68	39,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$6,837
Energy Cost	-
10-Year Cost	-

Fujitsu ABUH24KUAS & AOUH24KUAS1 24,000 BTU 21.7 SEER2 Ceiling Suspended Heat Pump System - R32
from $4,780 (4 stores)

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	3.27	4,800	3.27	4,800	1.9	21,860
5F	2.14	24,600	3.75	5,500	2.14	24,600
17F	2.93	18,200	4.02	5,900	2.33	26,700
47F	3.68	27,000	3.23	5,400	2.81	32,000
95F	3.46	24,000	3.6	5,400	2.47	28,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$4,780
Energy Cost	-
10-Year Cost	-

Fujitsu AMUH36KUAS & AOUH36KUAS1 36,000 BTU 17.6 SEER2 Ducted Multi-Position Air Handler Heat Pump System - R32
$7,019 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	3.21	6,800	3.21	6,800	2.06	27,850
5F	2.18	32,000	3.69	7,800	2.18	32,000
17F	2.85	27,400	4.07	8,600	2.4	35,200
47F	3.95	38,000	4.15	9,200	2.95	43,000
95F	3.1	36,000	6.39	9,600	2.7	39,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$7,019
Energy Cost	-
10-Year Cost	-

Fujitsu ARUH42KUAS & AOUH42KUAS1 42,000 BTU 17.3 SEER2 Mid Static Ducted Heat Pump System - R32
$7,982 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	2.46	12,000	2.46	12,000	2.06	34,200
5F	2.23	37,000	2.63	13,000	2.23	37,000
17F	2.86	32,000	3.28	13,000	2.47	41,000
47F	3.66	47,000	5.66	14,300	3.21	51,000
95F	3.02	42,000	5.69	13,600	2.86	45,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$7,982
Energy Cost	-
10-Year Cost	-

Fujitsu ASLH09KNAS & AOLH09KNAS1 9,000 BTU 17 SEER2 115V Altair 300 Wall Mounted Heat Pump System - R32
$1,281 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.12	6,800	1.64	1,400	2.12	6,800
17F	2.63	5,200	1.96	1,740	2.32	8,550
47F	3.56	9,000	4.54	3,100	2.63	12,400
95F	3.1	9,000	3.79	3,100	2.14	10,500

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$1,281
Energy Cost	-
10-Year Cost	-

Fujitsu ASLH12KNAS & AOLH12KNAS1 12,000 BTU 17 SEER2 115v Altair 300 Wall Mounted System - R32
$1,459 at GotDuctless

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
5F	2.18	8,200	1.64	1,400	2.18	8,200
17F	2.62	7,500	2.64	2,700	2.39	10,100
47F	3.35	12,000	4.33	3,100	2.45	13,900
95F	2.98	12,000	3.95	3,100	2.54	12,500

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$1,459
Energy Cost	-
10-Year Cost	-

Fujitsu ARUH48KUAS & AOUH48KUAS1 48,000 BTU 16.4 SEER2 Mid Static Ducted Heat Pump System - R32
from $8,463 (2 stores)

FUJITSU

R-32

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	3.83	8,100	3.83	8,100	2.08	37,960
5F	2.24	41,000	4.21	8,900	2.24	41,000
17F	2.99	37,200	4.59	9,700	2.46	45,000
47F	3.42	51,000	6.25	16,000	3.04	55,000
95F	2.79	45,500	6.74	15,400	2.63	48,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$8,463
Energy Cost	-
10-Year Cost	-

Fujitsu 24,000 BTU 17.5 SEER Medium Static Pressure Duct Single Zone System
$4,807 at GotDuctless

FUJITSU

R-410A

Temp	COP	@ rated BTU	COP	@ min BTU	COP	@ max BTU
-5.0F	1.52	3,213	1.52	3,213	1.67	19,270
5F	1.94	22,200	1.75	3,702	1.94	22,200
17F	2.15	17,300	1.96	4,145	2.14	24,800
47F	3.84	27,000	2.93	5,400	3.21	32,400
95F	3.7	24,000	2.51	5,400	3.01	29,000

kWh Per Year, Just Heatpump	-
kWh Backup Heat Needed	-
kWh Total per Year	-
Hours Over Capacity	-
Hours Short Cycling	-
Purchase Cost	$4,807
Energy Cost	-
10-Year Cost	-

Your Home

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My System

Your Heat Pump Options!

Sorted by annual cost (equipment + estimated energy), based on your area's weather and home.

Type Mini Splits Ducted | Filters

| Energy Star Cold Climate

Name	Brand	SEER2	HSPF2	Works to	Price	Cost/Year

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.

FUJITSU Heat Pumps

Your Heat Pump Options!

Building Heat Loss Details

Heat Loss Breakdown