Heating Methods · Compared

36 heating systems scored on overall performance, energy efficiency, and carbon avoidance — from ground-source heat pumps to wood stoves. All metrics: higher = better.

Methods

Avg Overall

Avg Efficiency

283

Total Carbon Avoidance

1.8K

Rank	Method	Tech Class	Best For	Overall Score ▼	Efficiency Index	Carbon Avoidance	Energy Source
🥇	Solar PV + Heat Pump (Combined) 光伏 + 热泵一体化系统	Solar-Electric Hybrid	Grid-tied residential	97	520	99	☀Solar
🥈	Ground-Source Heat Pump (Vertical Loop) 地源热泵（垂直埋管）	Geothermal Heat Pump	Year-round, all climates	96	480	96	⚡Geothermal
🥉	Water-Source Heat Pump 水源热泵	Hydrothermal Heat Pump	Lake/river/aquifer adjacent	94	500	95	⚡Geothermal
4	Deep Geothermal District Heating 深层地热区域供暖	Geothermal District	City-scale, Iceland/Turkey/PRC	93	600	97	♨Geothermal
5	Ductless Mini-Split Heat Pump 无管道分体式热泵	Air-Source Heat Pump	Single-zone retrofit	92	450	88	⚡Electric
6	District Heating — Industrial Waste Heat 区域供暖（工业余热）	Waste-Heat Recovery	Steel/refining/chemical adjacent	91	800	96	🏘District
7	Standard Air-Source Heat Pump 普通空气源热泵	Air-Source Heat Pump	Mild climates	90	400	84	⚡Electric
8	Cold-Climate Air-Source Heat Pump 寒带空气源热泵	Air-Source Heat Pump	Sub-zero winters	88	340	86	⚡Electric
9	District Heating — Data Center Waste Heat 区域供暖（数据中心余热）	Data-Center Waste-Heat	Tech-corridor cities	88	750	95	🏘District
10	VRF / Variable Refrigerant Flow VRF 多联机	Commercial Heat Pump	Multi-zone commercial	87	430	85	⚡Electric
11	Air-Source Heat Pump + Thermal Storage 空气源热泵 + 蓄热	Hybrid Electric	Off-peak shifting	85	380	90	⚡Hybrid
12	Solar Thermal — Evacuated Tube 太阳能集热（真空管）	Solar Thermal	DHW + space heating	84	280	92	☀Solar
13	Heat Pump + Gas Backup (Hybrid) 热泵 + 燃气备份	Hybrid	Cold-snap insurance	82	320	62	🔥Hybrid
14	Hot-Spring District Heating 温泉区域供暖	Geothermal District	Volcanic regions	81	380	90	♨Geothermal
15	Solar Thermal — Flat Plate 太阳能集热（平板式）	Solar Thermal	DHW preheat	78	240	88	☀Solar
16	District Heating — Biomass CHP 生物质热电联产区域供暖	Biomass CHP	Forested regions	78	300	78	🏘District
17	Solar Thermal + Electric Backup 太阳能 + 电辅热	Hybrid Solar	DHW year-round	75	260	80	☀Hybrid
18	District Heating — Natural Gas CHP 天然气热电联产区域供暖	Gas CHP	Northern China, Russia, Eastern EU	72	340	35	🏘District
19	Wood Pellet Boiler (District Scale) 木屑颗粒锅炉（小型集中）	Wood Pellet	Small village clusters	72	300	75	🌳Biomass
20	Natural Gas Condensing Furnace 冷凝式燃气炉	Natural Gas	Cold climate residential	68	96	18	🔥Gas
21	Natural Gas Boiler (Hydronic) 燃气壁挂炉（水暖）	Natural Gas	Radiator + radiant floor	65	92	15	🔥Gas
22	Pellet Stove (EPA-Certified) 颗粒炉（EPA 认证）	Wood Pellet	Single-room residential	65	280	68	🌳Biomass
23	Propane Furnace (LPG) 丙烷炉（液化石油气）	Propane	Off-grid rural	58	90	8	🔥Gas
24	Electric Storage Heater (Off-Peak) 蓄热电暖器（夜间低谷）	Resistance + Storage	Time-of-use tariffs only	55	100	40	⚡Electric
25	Natural Gas Conventional Furnace 普通燃气炉	Natural Gas	Older construction	55	80	5	🔥Gas
26	Wood Stove (EPA-Certified) 柴火炉（EPA 认证）	Cordwood	Off-grid rural	55	240	55	🌳Biomass
27	Electric Radiant Floor Heating 电地暖	Resistance Heating	Bathroom / single-room	48	100	35	⚡Electric
28	Oil-Fired Furnace 燃油炉	Heating Oil	NE USA / Ireland legacy	48	85	-10	🔥Gas
29	Infrared Electric Panel 远红外电热板	Resistance Heating	Spot heating	46	100	32	⚡Electric
30	Oil-Fired Boiler (Hydronic) 燃油锅炉（水暖）	Heating Oil	Older European homes	46	85	-12	🔥Gas
31	District Heating — Coal CHP (Legacy) 燃煤热电联产（老旧）	Coal CHP	Aging Northern systems	42	280	-30	🏘District
32	Kerosene Heater (Portable) 煤油暖炉（便携式）	Kerosene	Japan / Korea winter	40	88	-20	🔥Gas
33	Electric Baseboard / Resistance 电阻基板加热	Resistance Heating	Backup / very mild winters	38	100	25	⚡Electric
34	Biochar Cookstove (Improved) 生物质炭炉（改良型）	Biochar	Developing-world cooking + heat	38	120	50	🌳Biomass
35	Traditional Wood Stove 传统柴火炉	Cordwood	Pre-1990 installs	32	130	25	🌳Biomass
36	Coal Stove (Rural) 燃煤炉（农村）	Coal	N. China rural legacy	25	42	-90	🔥Gas