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Last Update: 08/01/2026 at 2:00 PM EST
US Heat Pumps Gain Ground
Coverage from PBS News, ScienceDirect, and others
Articles
62
Active Days
249
The Topic
Heat pumps are gaining ground in U.S. buildings as shipments, new-home installations, and multifamily adoption continue to rise, while newer systems increasingly support both heating and cooling in cold conditions. Lower-cost window units and advances in controls, storage, and system integration could broaden access, but performance still varies with extreme cold, frost, system design, and installation conditions. The trend matters because more efficient electric heating can reduce building energy use and fossil-fuel dependence, while also increasing the importance of reliable winter performance and electricity planning.
First Article: 01/26/26
Latest Article: 10/01/26
Summary
- U.S. heat pump shipments and installations continue to gain ground against fossil-fuel heating, particularly in new housing.
- Window-mounted heat pumps could give renters and owners of older homes a simpler, lower-cost option for room-by-room electrification.
- Modern variable-speed systems are improving cold-weather operation, but extreme temperatures can still reduce output and efficiency.
- A field study found that inadequate defrosting can cause hidden efficiency losses, showing that control performance matters alongside hardware design.
- Solar generation and phase-change thermal storage may improve heat pump efficiency and shift building loads, although system control remains complex.
- Heat pumps are associated with higher home sale prices in some analyses, but the estimated value varies by method and listing practices.
History
The story now emphasizes broader market penetration: heat pumps are not just rising in shipments and new housing, but also gaining traction in multifamily buildings. The framing also tightens around winter reliability, highlighting cold extremes, frost, and installation conditions as the key remaining constraints.
The story is broadly unchanged, but it now places more emphasis on policy uncertainty and market access constraints rather than just technical performance. The main new wrinkle is that expired federal subsidies are joined by standards litigation and uneven local support, reinforcing a more uncertain adoption environment.
Featured
06-21-2026
In the USA, window heat pumps are becoming available for apartment and older-home retrofits, offering lower-cost installation but reduced cold-weather heating capacity.
07-10-2026
Researchers in Mohe, China analyzed heat-pump defrost control at -42 C and proposed a U-shape robustness test for extreme-cold certification to detect both over- and under-defrosting.
10-01-2026
Review synthesizes studies on PCM thermal storage integrated with solar-assisted heat pumps to improve building energy performance and emissions, with design and control complexity limiting full optimization.
Timeline: 249 Days
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Additional Articles
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In the United States, window heat pumps are emerging as a lower-cost electrification option for apartment heating and cooling, with major performance limits in extreme cold.
RMI analysis says replacing U.S. electric resistance heating with heat pumps can reduce home emissions about 40% and lower heating costs, depending on insulation and grid upgrades.
Proposed regulations and incentives for heat pumps aim to accelerate energy efficiency investment and cut emissions by enabling higher performance, smart controls, and consumer adoption in buildings.
Germany’s 2025 residential building completions show heat pumps in most new homes, while Heizungsgesetz changes shift near-term regulatory pressure as retrofits remain crucial.
European Heat Pump Association data show 2025 heat pump sales of 2.9 million units across 21 European countries, displacing LNG-equivalent energy and avoiding import costs as an electrification package approaches.
Statistisches Bundesamt reports that heat pumps became the main heating source in 73.6% of Germany residential building completions in 2025.
European Heat Pump Association market data shows 2025 heat-pump sales increasing 13% across 21 countries and links rollout to reduced LNG import exposure amid ongoing household affordability risks.
The International Energy Agency analysis summarized by pv magazine reports that heat pumps often reduce EU heating costs versus gas boilers, but adoption varies due to upfront costs and country-specific pricing and grid policies.
Oregon regulators identify heat pumps as a central strategy to reduce peak demand during ongoing policy discussions in Oregon.
Energy analysts and economists in 2025 describe, in an international context spanning Europe, China, the United States and others, a long-term heating transition from oil toward electric heat pumps.
European and North American policymakers expand heat pump incentives, but supply chain constraints, retrofit costs, installer shortages, refrigerant lifecycle concerns, and grid distribution needs affect rollout.
Energi media reports that the electrotech revolution positions heat pumps as a key demand technology in the global energy transition through 2025 and beyond.
Researchers led by Dan Schrag report in a new U.S.-wide county-level study that electricity prices often determine whether residential heat pumps lower or raise heating bills.
In U.S. home decarbonization policy discussion, hybrid heat pump-plus-furnace systems are highlighted as a bridge to cut gas use faster in cold climates.
Europe’s Electrification Rate Has Been Stuck at 23% for a Decade. The Commission Finally Has a Plan.
A leaked EU Commission Electrification Action Plan draft (COM(2026) 595) proposes electricity bills reform and a clean heat market mechanism to accelerate heat pumps by 2030.
In May 2026, forecast extreme heat across Spain, Germany, and the UK increased attention on residential cooling options, including air-to-air heat pumps, and on protective measures for vulnerable settings.
U.S. window heat pumps offer plug-in heating and cooling for apartments and older homes, with incentives shifting after 2025 subsidy expirations.
Window heat pumps are gaining availability in the U.S. as plug-in building electrification options, with lower costs but reduced cold-weather heating performance.
In the United States, plug-in window heat pumps are expanding heat-pump adoption for renters as federal subsidies expire in 2025.
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In the US, a 2024 to 2025 heat-pump resale analysis reported 0.6% to 1% sale-price premiums when real estate listings mention ducted heat pumps.
The Building Decarbonization Coalition reports US heat pump sales growth, with 2024 adoption reaching 46% of new housing as efficiency improves over fossil furnaces.
AHRI reported April 2025 U.S. air-source heat pump shipments rose year over year as variable-speed cold-weather performance improved and DOE appliance-efficiency litigation continued.
Drew Baglino founded Sadi Thermal Machines in Scotts Valley, California, to develop residential heat pumps after Tesla discontinued earlier plans in 2022.
Marie Tai used a Laminar Collective heat pump group-buy program in Boston to install a ductless minisplit with rebates and 0% financing as federal incentives declined.
Drew Baglino is developing a residential heat pump at Sadi Thermal Machines, drawing from Tesla discussions from 2022 to enable efficient electric home heating and cooling.
European Heat Pump Association reports 13% heat pump sales growth in 2025 across 21 European countries, linking household electrification to lower LNG imports and improved energy security.
Bernstein forecasts Europe heat pump adoption will increase UK electricity demand and peak load through 2035, requiring distribution grid upgrades.
Record late-June heatwaves across Germany and the Czech Republic boosted European air-conditioner sales while market pressure shifts toward heat pumps under EU decarbonization goals.
On May 23, 2026, Minnesota HVAC market observations linked air source heat pump adoption gaps to contractor recommendations and homeowner awareness despite IRA and utility rebates.
U.S. EPA grant funding for Accelerating Clean Energy Savings is backing heat pump rebates for Alaska gulf coast households, with enrollment slower than planned and timelines ending in October 2029.
Destatis reports Germanys 2025 residential completions: heat pumps provided primary heating for 73.6% of new buildings and planned projects target 87.0% renewable heating.
RMI reports that switching U.S. homes from electric resistance heating to heat pumps could lower household costs and reduce home heating emissions about 40%.
Europe faces record-hot May conditions as air-to-air heat pump sales rise, increasing cooling options while electricity use and refrigerant risks remain concerns.
BSRIA estimates global hydronic heat pump sales increased in 2025 while gas boilers continued to dominate heating equipment markets.
In the United States during 2024, heat pumps reached 46% of new housing share and outpaced fossil-fuel furnace shipments for multiple consecutive years.
IEA analysis in 2025 prices indicates EU heat pumps are cost-effective for low-temperature industrial heat, but grid and upfront-cost barriers limit deployment and require stronger policy support.
Midea America Corp. engineering leadership urges US contractors to use Manual J load calculations and homeowner education as heat pump adoption grows.
European energy security efforts under REPowerEU are accelerating residential heat pump adoption as gas supply disruption fears increase demand.
Smart Energy Consumer Collaborative, 257, and the National Association of Realtors report 2024-2025 U.S. sales data showing ducted heat-pump mentions correlate with higher home sale prices.
Spain and parts of northern Europe adapt to more frequent heatwaves by using climate shelters and passive cooling instead of relying on air conditioning for most households.
Marie Tai in Boston joined a Laminar Collective heat-pump group-buy in spring, securing a lower priced ductless minisplit amid federal electrification incentive changes.
Heat pump sales rose across multiple European markets in 2025 and early 2026 as consumers respond to high gas prices, while Germany and Austria policy changes affect subsidy and heating transitions.
EU governments subsidize reversible heat pumps during building retrofits, expanding summer cooling and improving climate resilience amid heatwave-driven debate.
In 2026, heat pump systems are compared with furnaces for home heating and cooling efficiency, costs, and suitability in cold-weather conditions in the USA.
AHR 2026 panel in Las Vegas emphasized dual-fuel heat pump systems, cold-climate performance, rebates, and contractor training as drivers for broader HVAC adoption in the US.
Technical University of Munich compared 13 German residential heating systems in 2015-era Paris-aligned decarbonization framing, finding air-to-water heat pumps with photovoltaics lowest CO2.
A EU techno-economic study reports GSHP systems can reduce life-cycle costs up to 36% versus ASHP across most climate zones, with initial cost remaining a barrier.
In 2023, nine European consumer organizations launched CLEAR-HP to increase home heat pump installations using collective purchasing and independent testing.
The essay argues in Europe and the United States that bidirectional heat pumps and cleaner electricity are needed to meet rising air-conditioning demand during hotter heat-wave conditions.
Ashland, Oregon, reported more heat pump installations than gas furnace replacements since 2018, with 2025 incentive growth driving additional conversions.
U.S. building electrification using electric heat pumps can reduce residential emissions and combustion pollutants while improving efficiency and household economics.
Project Drawdown argues for heat pump adoption as cooling defaults to accelerate building electrification and meet climate targets.
Residential heat pump adoption faces upfront cost barriers as current efficiency labeling and standards overestimate real-world seasonal performance under cycling and defrost.
Merino and other suppliers are bringing window-mounted heat pumps to the U.S. for renters and older homes, aiming to reduce installation cost and complexity.
Europe links heat pump uptake to EU building-performance and product-efficiency rules, carbon pricing, and electricity-cost conditions from 2023-2025.
MiniStor demonstrated ammonia thermochemical and phase-change thermal storage integrated with heat pumps for flexible residential decarbonisation across multiple European countries, concluding in June 2025.
U.S. adoption of plug-in window heat pumps is growing as a lower-cost pathway for building electrification, despite cold-weather performance limits and incentive changes after 2025.
Heat pumps are presented as a building electrification approach that can reduce household energy use and emissions through high COP-based heat transfer.
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Renewable electricity costs fall in the 2020s, driving heat pump heating adoption worldwide.