Measured by the state of California

Which hot tubs use the least power

Updated October 2026By the HotTubFinder research desk

California makes every spa file its standby power. No brochure prints it. We matched 317 models to their filing.

Models measured

317

Lowest draw

107 W

$14 / month

Median

197 W

$26 / month

Highest draw

350 W

$46 / month

Monthly figures assume 18.19¢ per kWh, the US residential average for January to July 2026, and the tub simply holding temperature. Your rate and your winter decide the rest. Sources: California Energy Commission database ↗, EIA Electric Power Monthly, Table 5.6.B ↗

Findings by brand, insulation and size: the 2026 hot tub energy report.

All 317 measured models, thriftiest first

“For its size” compares each tub with others that hold about as much water. A small tub can be cheap to run and still draw more than tubs its size.

Model	Gallons	Standby	For its size	Limit	Per month
Caldera Spas Aventine	142	107 W	Lower	142	$14
Nordic Hot Tubs D'Amour MS	187	108 W	Lower	163	$14
Sundance Spas Dover	225	108 W	Lower	179	$14
Hot Spring Mini	122	112 W	Lower	132	$15
Nordic Hot Tubs D'Amour SE	182	114 W	Lower	160	$15
Nordic Hot Tubs Bella MS	131	116 W	Typical	137	$15
Hot Spring Aptos	235	120 W	Lower	183	$16
Hot Spring TX	160	122 W	Lower	151	$16
Jacuzzi J404L	240	122 W	Lower	185	$16
Nordic Hot Tubs Stella MS	223	123 W	Lower	178	$16
Sundance Spas Capri	240	123 W	Lower	185	$16
Nordic Hot Tubs Crown	268	131 W	Lower	196	$17
Sundance Spas Montclair	305	131 W	Lower	210	$17
Master Spas S6	254	134 W	Lower	190	$18
Artesian Spas Azalea	168	135 W	Lower	154	$18
Jacuzzi J-315	210	136 W	Lower	172	$18
Sundance Spas Marin	315	136 W	Lower	214	$18
Artesian Spas Viola	202	140 W	Lower	169	$19
Caldera Spas Ravello	230	140 W	Lower	181	$19
Master Spas L5	182	140 W	Lower	160	$19
Nordic Hot Tubs Impulse DP	275	140 W	Lower	199	$19
American Whirlpool 101	142	141 W	Typical	142	$19
Bullfrog Spas Calm6	262	142 W	Lower	194	$19
Dimension One Spas Serenade	225	142 W	Lower	179	$19
Hot Spring Jetsetter LX	230	142 W	Lower	181	$19
Vita Spa Amour	144	142 W	Typical	143	$19
Nordic Hot Tubs Stella SE	223	143 W	Lower	178	$19
Hot Spring Jetsetter	220	144 W	Lower	177	$19
Artesian Spas Hibiscus	182	146 W	Typical	160	$19
Jacuzzi J408	330	147 W	Lower	219	$20
Hot Spring SX	225	148 W	Lower	179	$20
Nordic Hot Tubs Retreat SE	248	148 W	Lower	188	$20
Sundance Spas Altamar	305	148 W	Lower	210	$20
Nordic Hot Tubs Impulse	262	149 W	Lower	194	$20
Artesian Spas Santa Cruz	207	150 W	Typical	171	$20
Jacuzzi J-325	335	150 W	Lower	221	$20
Artesian Spas Plume	281	151 W	Lower	201	$20
Jacuzzi J509	505	151 W	Lower	278	$20
Nordic Hot Tubs Retreat MS	247	151 W	Lower	188	$20
Sundance Spas Optima	355	151 W	Lower	228	$20
Sundance Spas Vistamar	330	151 W	Lower	219	$20
Caldera Spas Celio	213	152 W	Typical	174	$20
Master Spas L6	239	152 W	Lower	184	$20
Nordic Hot Tubs Crown II	278	152 W	Lower	200	$20
Nordic Hot Tubs Crown XL	317	152 W	Lower	214	$20
Sundance Spas Chelsee	370	152 W	Lower	233	$20
Sundance Spas Bristol	335	153 W	Lower	221	$20
Bullfrog Spas X5L	208	154 W	Typical	172	$20
Dimension One Spas Triad	245	155 W	Lower	187	$21
Artesian Spas 519P	200	156 W	Typical	168	$21
Artesian Spas Wisteria	329	156 W	Lower	219	$21
Hot Spring Excursion	250	156 W	Typical	189	$21
Jacuzzi J-215	205	156 W	Typical	170	$21
Master Spas San Miguel	177	156 W	Typical	158	$21
Cal Spas Kona Plus PPZ-533L	260	157 W	Typical	193	$21
Cal Spas Kona PZ-519L	260	157 W	Typical	193	$21
Sundance Spas Alicia	210	157 W	Typical	172	$21
Artesian Spas Forsythia	224	158 W	Typical	178	$21
Artesian Spas Iris	203	158 W	Typical	170	$21
Bullfrog Spas STIL5	256	158 W	Typical	191	$21
Marquis Nashville Elite	203	158 W	Typical	—	$21
Sundance Spas Cameo	370	158 W	Lower	233	$21
Artesian Spas 533DL	237	159 W	Typical	184	$21
Hot Spring Beam	291	159 W	Lower	205	$21
Hot Spring Prodigy	264	159 W	Typical	—	$21
Jacuzzi J508L	420	159 W	Lower	250	$21
Artesian Spas 627M	263	160 W	Typical	194	$21
Dimension One Spas Journey	240	160 W	Typical	185	$21
Hot Spring Stride	221	160 W	Typical	177	$21
Jacuzzi J408L	325	160 W	Lower	217	$21
Bullfrog Spas A5D	221	161 W	Typical	177	$21
Caldera Spas Kauai	210	162 W	Typical	172	$22
Sundance Spas Hamilton	370	162 W	Lower	233	$22
Artesian Spas 532L	197	163 W	Higher	167	$22
Marquis Euphoria	404	163 W	Lower	245	$22
Master Spas Balance 6	274	163 W	Typical	198	$22
American Whirlpool 151	192	164 W	Higher	165	$22
Artesian Spas Hydrangea	273	165 W	Typical	198	$22
Marquis V65L	211	165 W	Higher	173	$22
Nordic Hot Tubs Warrior XL	320	165 W	Lower	215	$22
Bullfrog Spas A6	334	166 W	Lower	221	$22
Bullfrog Spas X6R	290	166 W	Lower	204	$22
Marquis Monaco Elite	253	166 W	Typical	190	$22
Master Spas Ocho Rios CS	223	166 W	Higher	178	$22
Master Spas Balance 7	335	168 W	Lower	—	$22
Master Spas TS 67.25	242	168 W	Typical	186	$22
Hot Spring Sovereign	300	169 W	Typical	208	$22
Marquis Spirit	261	169 W	Typical	193	$22
Master Spas L7	314	169 W	Lower	213	$22
Nordic Hot Tubs Encore MS	327	169 W	Lower	218	$22
Master Spas Balance 6 CS	274	170 W	Typical	198	$23
PDC Spas Mirage	230	170 W	Higher	181	$23
American Whirlpool 160	244	171 W	Higher	186	$23
American Whirlpool 261	208	171 W	Higher	172	$23
Artesian Spas Grand Bahama	390	171 W	Lower	240	$23
Jacuzzi J508	425	172 W	Lower	252	$23
Nordic Hot Tubs Jubilee LS	334	172 W	Lower	221	$23
American Whirlpool 451	214	173 W	Higher	—	$23
Artesian Spas 729B	323	173 W	Lower	217	$23
Hot Spring Rhythm	312	173 W	Typical	213	$23
Master Spas Ocho Rios SE	223	173 W	Higher	178	$23
PDC Spas Carmel	238	173 W	Higher	184	$23
Vita Spa Trio	213	173 W	Higher	174	$23
Artesian Spas Antigua	325	174 W	Lower	217	$23
Master Spas S7	329	174 W	Lower	219	$23
Artesian Spas Camellia	221	175 W	Higher	177	$23
Artesian Spas Captiva	340	175 W	Lower	223	$23
Nordic Hot Tubs Jubilee MS	325	175 W	Lower	217	$23
Sundance Spas Kingston	355	176 W	Lower	228	$23
Artesian Spas Nevis	307	177 W	Typical	211	$24
Bullfrog Spas X7	373	177 W	Lower	234	$24
Bullfrog Spas X7L	373	177 W	Lower	234	$24
Bullfrog Spas X6L	311	178 W	Typical	212	$24
Hot Spring Monterey	261	178 W	Higher	193	$24
Nordic Hot Tubs Encore LS	336	178 W	Lower	221	$24
Sundance Spas Prado	275	178 W	Typical	199	$24
Hot Spring Pace	291	179 W	Typical	205	$24
Master Spas TS 6.2	249	179 W	Higher	188	$24
Nordic Hot Tubs Jubilee SE	325	179 W	Typical	217	$24
Hot Spring Relay	321	180 W	Typical	216	$24
Jacuzzi J-345	345	180 W	Lower	224	$24
Marquis Wish	256	180 W	Higher	191	$24
PDC Spas Twilight	266	180 W	Higher	—	$24
Artesian Spas 729L	312	181 W	Typical	213	$24
Nordic Hot Tubs Encore SE	328	181 W	Typical	218	$24
Hot Spring Azure	235	182 W	Higher	183	$24
Jacuzzi J-225	280	182 W	Higher	200	$24
Artesian Spas Grand Cayman	403	183 W	Lower	—	$24
Jacuzzi J-245	310	183 W	Typical	212	$24
Marquis Resort	350	184 W	Typical	226	$24
Cal Spas Maui Plus PPZ-634B	397	185 W	Lower	243	$25
Dimension One Spas Dream	335	185 W	Typical	221	$25
Master Spas Precision 7	366	185 W	Typical	232	$25
American Whirlpool 461	245	186 W	Higher	187	$25
Caldera Spas Florence	333	186 W	Typical	220	$25
Caldera Spas Tarino	312	186 W	Typical	213	$25
Sundance Spas Claremont	370	188 W	Typical	233	$25
Artesian Spas 743D	269	189 W	Higher	196	$25
Caldera Spas Tahitian	332	189 W	Typical	220	$25
Hot Spring Aria	330	189 W	Typical	—	$25
Jacuzzi J-235	300	189 W	Typical	208	$25
Marquis V77L	275	189 W	Higher	199	$25
Dimension One Spas Breeze	335	190 W	Typical	221	$25
American Whirlpool 250	257	191 W	Higher	192	$25
American Whirlpool 460	257	191 W	Higher	192	$25
Artesian Spas Quail Ridge	340	191 W	Typical	223	$25
Dimension One Spas Chairman	410	191 W	Lower	247	$25
Vita Spa Image	259	191 W	Higher	192	$25
Caldera Spas Makena	395	192 W	Lower	242	$25
Dimension One Spas Aurora	300	192 W	Higher	208	$25
Bullfrog Spas A6L	314	193 W	Typical	—	$26
Sundance Spas Aspen	505	193 W	Lower	278	$26
Dimension One Spas Diplomat	360	194 W	Typical	230	$26
Dimension One Spas Wayfarer	330	195 W	Typical	219	$26
Hot Spring Flair	335	196 W	Typical	221	$26
Hot Spring Vanguard	343	196 W	Typical	224	$26
Marquis Broadway Elite	286	196 W	Higher	203	$26
Vita Spa Joli	272	196 W	Higher	197	$26
Bullfrog Spas Calm7L	352	197 W	Typical	227	$26
Jacuzzi J-335	350	197 W	Typical	226	$26
Sundance Spas Edison	345	197 W	Typical	224	$26
Sundance Spas Peyton	325	197 W	Typical	217	$26
Caldera Spas Seychelles	332	198 W	Typical	220	$26
Jacuzzi J-365	395	198 W	Lower	242	$26
Marquis Epic	370	198 W	Typical	233	$26
Master Spas TS 7.2	303	198 W	Higher	209	$26
Caldera Spas Vanto	350	201 W	Typical	226	$27
Jacuzzi J-355	360	201 W	Typical	230	$27
Master Spas LSX 700	303	202 W	Higher	209	$27
Artesian Spas 748L	313	203 W	Higher	213	$27
Cal Spas Baja EC-749B	486	203 W	Lower	272	$27
Cal Spas Baja EC-767B	486	203 W	Lower	272	$27
Cal Spas Baja X-Series EC-749BX	486	203 W	Lower	272	$27
Cal Spas Baja X-Series EC-767BX	486	203 W	Lower	272	$27
Cal Spas Laguna PL-793B	486	203 W	Lower	272	$27
Cal Spas Tropical Plus PPZ-743B	486	203 W	Lower	272	$27
Cal Spas Tropical Plus PPZ-743BC	486	203 W	Lower	272	$27
Cal Spas Tropical Plus PPZ-752B	486	203 W	Lower	272	$27
Cal Spas Tropical X-Series EC-751BX	486	203 W	Lower	272	$27
Caldera Spas Niagara	388	203 W	Typical	239	$27
Marquis Vegas Elite	352	203 W	Typical	—	$27
Wellis Hercules	289	203 W	Higher	204	$27
Caldera Spas Martinique	295	204 W	Higher	206	$27
Dimension One Spas Latitude	420	204 W	Lower	250	$27
Master Spas Balance 8	397	204 W	Lower	—	$27
Dimension One Spas Amore Bay	480	205 W	Lower	270	$27
Artesian Spas Piper Glen	407	206 W	Lower	246	$27
Caldera Spas Marino	336	206 W	Higher	221	$27
Master Spas TS 7.25	302	206 W	Higher	209	$27
Vita Spa Voeux	297	206 W	Higher	207	$27
Bullfrog Spas A7L	408	207 W	Lower	246	$27
Master Spas Precision 8	467	207 W	Lower	—	$27
PDC Spas Seasons	309	207 W	Higher	211	$27
Bullfrog Spas A8	501	208 W	Lower	277	$28
Marquis Destiny	305	208 W	Higher	210	$28
Hot Spring Flash	350	209 W	Typical	226	$28
Bullfrog Spas Calm7	344	210 W	Higher	—	$28
Dimension One Spas Nautique	325	210 W	Higher	217	$28
Nordic Hot Tubs Rendezvous LS	375	210 W	Typical	235	$28
Artesian Spas Eagle Crest	335	211 W	Higher	221	$28
Cal Spas Hawaiian Plus PPZ-634L	399	211 W	Typical	243	$28
Hot Spring Pulse	420	211 W	Lower	250	$28
Jacuzzi J-375	440	211 W	Lower	257	$28
Hot Spring Grandee	445	212 W	Lower	259	$28
Dimension One Spas Nautilus	420	213 W	Lower	250	$28
Marquis V84	319	214 W	Higher	215	$28
Master Spas LSX 30	342	214 W	Higher	223	$28
American Whirlpool 470	322	215 W	Higher	216	$29
Artesian Spas 748B	323	215 W	Higher	217	$29
Marquis V84L	330	216 W	Higher	219	$29
Jacuzzi J-385	455	217 W	Typical	262	$29
Vita Spa Prestige	328	217 W	Higher	218	$29
Bullfrog Spas M6	387	218 W	Typical	239	$29
Cal Spas Costa EC-749L	453	218 W	Typical	261	$29
Cal Spas Costa EC-767L	453	218 W	Typical	261	$29
Cal Spas Costa X-Series EC-749LX	453	218 W	Typical	261	$29
Cal Spas Costa X-Series EC-767LX	453	218 W	Typical	261	$29
Cal Spas Huntington PL-792L	453	218 W	Typical	261	$29
Cal Spas Pacifica EC-751L	453	218 W	Typical	261	$29
Cal Spas Pacifica Plus PPZ-743L	453	218 W	Typical	261	$29
Cal Spas Pacifica Plus PPZ-743LC	453	218 W	Typical	261	$29
Cal Spas Pacifica Plus PPZ-752L	453	218 W	Typical	261	$29
Cal Spas Pacifica X-Series EC-751LX	453	218 W	Typical	261	$29
Dimension One Spas Meridian	420	218 W	Typical	250	$29
Jacuzzi J-285	365	218 W	Higher	232	$29
Master Spas Bar Harbor SE	385	218 W	Typical	238	$29
Marquis Hollywood Elite	363	221 W	Higher	231	$29
Master Spas TS 8.2	379	221 W	Higher	236	$29
Artesian Spas 850B	410	222 W	Typical	247	$29
Caldera Spas Geneva	383	222 W	Higher	238	$29
Marquis V94L	450	223 W	Typical	260	$30
PDC Spas Reno	436	223 W	Typical	256	$30
Vita Spa Elegant	344	223 W	Higher	224	$30
Vita Spa Intrigue	344	223 W	Higher	224	$30
American Whirlpool 171	348	225 W	Higher	226	$30
Cal Spas Atlantic EC-851L	554	225 W	Lower	293	$30
Cal Spas Atlantic Plus PPZ-843L	554	225 W	Lower	293	$30
Cal Spas Atlantic X-Series EC-851LX	554	225 W	Lower	293	$30
Cal Spas Maui PZ-620B	397	225 W	Typical	243	$30
Cal Spas Tropical EC-751B	445	225 W	Typical	259	$30
Caldera Spas Reunion	350	225 W	Higher	226	$30
Hot Spring Envoy	435	225 W	Typical	255	$30
PDC Spas Catalina	403	225 W	Typical	245	$30
PDC Spas Denali	380	225 W	Higher	237	$30
Artesian Spas 853DL	396	226 W	Higher	242	$30
Artesian Spas 860B	421	226 W	Typical	251	$30
Marquis V94	445	226 W	Typical	259	$30
Cal Spas Cancun EC-867B	584	227 W	Lower	302	$30
Cal Spas Cancun X-Series EC-867BX	584	227 W	Lower	302	$30
Cal Spas Bel Air EC-851B	584	228 W	Typical	302	$30
Cal Spas Bel Air Plus PPZ-843B	584	228 W	Typical	302	$30
Cal Spas BelAir X-Series EC-851BX	584	228 W	Typical	302	$30
Cal Spas Carmel PL-893B	584	228 W	Typical	302	$30
Master Spas LSX 850	393	228 W	Higher	241	$30
PDC Spas Summit	380	228 W	Higher	237	$30
Artesian Spas Isla Margarita	531	229 W	Typical	286	$30
Bullfrog Spas A9L	579	229 W	Typical	301	$30
PDC Spas Malibu	371	230 W	Higher	234	$31
Wellis Lugano Life	388	231 W	Higher	239	$31
Sundance Spas McKinley	400	232 W	Higher	244	$31
Bullfrog Spas A7	418	233 W	Higher	250	$31
Master Spas TS 8.25	394	233 W	Higher	242	$31
Wellis Lima Life	381	234 W	Higher	237	$31
Master Spas Balance 9	523	235 W	Typical	283	$31
American Whirlpool 270	384	237 W	Higher	238	$31
Artesian Spas Bimini	619	237 W	Higher	312	$31
Marquis Woodstock Elite	435	237 W	Higher	255	$31
Caldera Spas Salina	402	238 W	Higher	244	$32
American Whirlpool 472	388	239 W	Higher	239	$32
Artesian Spas 850L	402	240 W	Higher	244	$32
Artesian Spas 860L	413	240 W	Higher	248	$32
Master Spas Bar Harbor LE	390	240 W	Higher	240	$32
Master Spas LSX 800	409	240 W	Higher	247	$32
Vita Spa Envie	394	240 W	Higher	242	$32
American Whirlpool 471	396	241 W	Higher	242	$32
Cal Spas Avalon EC-867L	519	241 W	Typical	282	$32
Cal Spas Avalon X-Series EC-867LX	519	241 W	Typical	282	$32
Caldera Spas Palatino	403	241 W	Higher	245	$32
American Whirlpool 480	399	242 W	Higher	243	$32
Cal Spas LaJolla PL-894L	519	242 W	Typical	282	$32
Cal Spas Malibu EC-867DL	519	242 W	Typical	282	$32
Cal Spas Malibu X-Series EC-867DLX	519	242 W	Typical	282	$32
PDC Spas Biscayne	403	242 W	Higher	245	$32
American Whirlpool 271	402	243 W	Higher	244	$32
Artesian Spas Dove Canyon	424	243 W	Higher	252	$32
Marquis Summit	457	243 W	Higher	—	$32
Dimension One Spas Executive	555	245 W	Higher	293	$33
Vita Spa Grand	416	248 W	Higher	249	$33
Vita Spa Riviera	419	249 W	Higher	—	$33
Bullfrog Spas M7	453	251 W	Higher	261	$33
Vita Spa Salon	429	252 W	Higher	253	$33
Artesian Spas 965L	524	253 W	Higher	284	$34
Vita Spa Sensation	436	255 W	Higher	256	$34
Bullfrog Spas M8	474	257 W	Higher	268	$34
Vita Spa Vivre	447	258 W	Higher	—	$34
Master Spas LSX 900	489	259 W	Higher	273	$34
Vita Spa Cabaret	449	259 W	Higher	260	$34
American Whirlpool 282	453	260 W	Higher	261	$35
Bullfrog Spas A8L	468	261 W	Higher	266	$35
Bullfrog Spas X8	454	261 W	Higher	262	$35
Bullfrog Spas X8L	454	261 W	Higher	262	$35
American Whirlpool 280	455	262 W	Higher	262	$35
American Whirlpool 281	460	263 W	Higher	263	$35
American Whirlpool 481	470	266 W	Higher	267	$35
Vita Spa Rendezvous	476	268 W	Higher	269	$36
Vita Spa Luxe	481	269 W	Higher	270	$36
American Whirlpool 881	484	270 W	Higher	271	$36
Artesian Spas Pelican Bay	526	270 W	Higher	284	$36
American Whirlpool 880	500	275 W	Higher	276	$37
PDC Spas Barbados	521	278 W	Higher	283	$37
Hot Spring Prism	523	280 W	Higher	283	$37
PDC Spas Bali	521	281 W	Higher	283	$37
Vita Spa Mystique	524	283 W	Higher	284	$38
PDC Spas Fiji	545	287 W	Higher	—	$38
Bullfrog Spas M9	588	295 W	Higher	303	$39
Caldera Spas Cantabria	615	307 W	Higher	311	$41
American Whirlpool 982	754	350 W	—	351	$46

Common questions

What does it cost to run a hot tub per month?

Standby power is the bulk of it. At 18.19¢ per kWh, the EIA's US residential average for January to July 2026, the most efficient tub we measured (107 W) costs about $14 a month just holding temperature, and the thirstiest (350 W) about $46. Heating fresh fill water and running the jets add to that.

Where does this number come from?

California requires every portable spa sold in the state to be certified for standby power, and publishes the filings in its appliance efficiency database. We pulled 920 listings and matched 317 of them to models in our catalog by manufacturer and model number.

Why do bigger tubs draw more?

More water and more surface area means more heat lost. That is why the regulation scales the limit with fill volume, and why comparing a 7-seater against a 3-seater on watts alone is meaningless. Compare within a size.

Next in your research

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