Every certified heat pump, A to Z

8,420 certified units in 394 groups, by the first two characters of the model number. Updated Oct 26, 2026.

Model number groups, A to Z
First letters	Units
04	47
12	3
18	10
19	1
1G	18
1H	4
1K	1
1P	1
1Q	18
1U	24
21	2
22	5
23	9
24	23
25	8
27	36
28	4
29	9
2D	4
2G	3
2K	1
2M	7
2Q	2
2U	2
30	3
36	5
37	58
38	35
3G	2
3K	8
3M	5
3P	29
3Q	2
3U	2
3V	3
3W	1
45	9
48	12
4A	16
4C	42
4D	13
4G	1
4H	8
4M	4
4P	23
4Q	1
4S	12
4T	29
4U	1
50	24
55	1
5A	30
5D	6
5G	1
5H	17
5M	3
5Q	1
5T	47
5W	6
60	8
67	8
7H	8
7S	6
82	6
90	3
9H	3
9M	2
9S	1
A-	138
A2	3
A3	5
A4	5
A5	22
A6	3
A7	15
AA	23
AB	18
AC	111
AD	34
AE	22
AF	27
AG	6
AH	39
AI	4
AJ	16
AK	2
AL	19
AM	48
AO	196
AP	30
AR	55
AS	236
AT	19
AU	66
AV	48
AW	40
AX	10
AY	1
AZ	26
B-	1
B5	17
BB	10
BD	12
BF	15
BH	15
BI	2
BM	133
BN	25
BO	22
BP	5
BR	4
BX	55
BZ	49
C2	18
C3	7
C4	4
C5	40
CA	12
CC	53
CD	36
CE	18
CG	4
CH	112
CM	17
CN	5
CO	4
CP	50
CS	16
CT	6
CU	51
CV	14
CZ	6
D5	54
DA	6
DB	4
DE	31
DH	23
DI	113
DL	35
DM	39
DN	4
DO	4
DR	67
DS	2
DW	16
DX	10
DZ	18
E4	5
EA	1
EC	20
ED	40
EH	44
EI	4
EL	22
EM	32
EN	15
EO	7
ER	4
ES	50
ET	4
EV	10
EX	8
EZ	42
F0	4
F1	6
F2	2
F3	1
F4	2
FA	19
FE	4
FG	1
FH	4
FL	8
FM	5
FO	20
FP	74
FR	27
FS	8
FW	18
FX	13
GA	2
GF	6
GH	26
GK	6
GL	17
GM	20
GO	3
GR	42
GS	50
GT	2
GU	13
GW	103
GX	8
GZ	12
H0	9
H1	22
H2	12
H3	7
H4	10
H5	21
H6	2
HA	2
HB	11
HC	4
HE	8
HH	20
HL	4
HM	13
HO	34
HP	15
HR	9
HS	16
HV	35
HW	2
IN	5
IS	2
J5	7
JK	9
KD	9
KE	37
KH	2
KK	3
KM	17
KO	60
KR	4
KU	102
KW	108
KY	10
LA	5
LB	16
LC	7
LD	7
LE	74
LH	7
LI	13
LL	4
LM	21
LR	4
LS	4
LU	16
LW	11
M2	8
M3	28
M4	31
M5	44
M6	21
MA	13
MB	5
MC	18
MD	29
MH	57
ML	100
MM	35
MO	331
MP	25
MR	22
MS	91
MU	120
MV	11
MW	34
MX	38
MY	22
MZ	33
N4	7
N5	22
NA	10
ND	23
NE	16
NH	2
NO	11
NP	4
NS	31
NT	68
O-	30
OA	36
OB	6
OC	10
OD	41
OF	9
OG	4
OH	2
OM	15
OR	4
OS	15
OT	2
OU	12
PA	19
PH	49
PI	16
PK	4
PL	1
PR	1
PS	4
PU	68
PX	4
Q5	4
QO	27
QS	3
QV	17
R4	4
R5	9
RA	59
RD	16
RH	21
RO	14
RP	32
RU	18
RV	10
RX	28
RZ	2
S-	2
SA	58
SB	1
SC	5
SD	5
SE	55
SH	90
SI	3
SL	6
SM	18
SO	6
SP	52
ST	2
SU	69
SZ	18
T4	2
T5	31
TA	13
TC	6
TD	3
TE	1
TG	6
TH	39
TI	2
TK	8
TM	94
TO	2
TP	4
TR	25
TS	75
TU	39
TV	8
TW	129
TZ	31
UB	6
UC	26
UH	25
UM	4
UP	10
UR	22
UX	2
VA	4
VH	20
VI	7
VM	7
VO	4
VP	14
VU	5
W4	6
W5	19
WD	16
WF	5
WH	17
WI	4
WL	27
WM	9
WO	23
WP	18
WR	1
WS	23
WU	6
XD	5
XH	20
XM	5
XP	1
YD	9
YH	23
YN	41
YO	7
YP	12
YR	44
YS	4
YV	2
YZ	8
Z2	2
Z3	5
Z4	12
Z5	4
Z6	1
ZE	29
ZM	48
ZO	4
ZR	4
ZS	14

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