# Air to Water Heat Pump Comparison _CompareFairly · en/US · neutral comparison, cited sources, no paid placement_ **Category:** home › heating cooling › heat pumps **Our pick**: Lennox Signature Series (94/100) · **Cheapest**: Mitsubishi Electric Hyper-Heating INVERTER · **Best value**: Mitsubishi Electric Hyper-Heating INVERTER ## Comparison table | Criterion | Lennox Signature Series | Carrier Infinity Series | Mitsubishi Electric Hyper-Heating INVERTER | Trane XV Series | Rheem EcoNet Enabled | Bosch Climate 5000i | | --- | --- | --- | --- | --- | --- | --- | | Purchase Price (USD) | 4500 | 3500 | 3000 | 4000 | 3000 | 5800 | | Annual Operating Cost (USD) | 720 | 730 | 750 | 770 | 760 | 780 | | Installation Cost (USD) | 4300 | 4250 | 3800 | 4100 | 3900 | 4200 | | Heating COP (ratio) | 4.7 | 4.8 | 4.5 | 4.5 | 4.4 | 4.6 | | Cooling EER (Btu/Wh) | 12.8 | 12.2 | 11 | 11.5 | 11.8 | 12 | | Heating Capacity (BTU/h) | 37000 | 36500 | 34000 | 35500 | 34500 | 35000 | | Energy Efficiency Rating | Very High | High | High | High | Medium | High | | Cooling Capacity (BTU/h) | 37000 | 36500 | 34000 | 35500 | 34500 | 35000 | | Sound Level (dB) | 44 | 43 | 48 | 47 | 49 | 46 | | Smart Features | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | Warranty | 10 years (with extended options) | 10 years | 5 years | 10 years (with extended options) | 9 years (with extended options) | 5 years parts | | Refrigerant Type | R410A | R410A | R410A | R410A | R410A | R410A | ## 1. Lennox Signature Series Lennox heat pumps offer some of the highest SEER ratings on the market, making them ideal for homeowners seeking maximum energy savings. **Best for:** Homeowners seeking maximum energy savings and quiet operation with advanced technology. **Pros:** - Quiet operation - Cutting-edge technology - Advanced energy efficiency (SEER ratings up to 23) - Variable-speed compressors _Source (verified): [https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/](https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/)_ ## 2. Carrier Infinity Series Carrier is often considered a top choice for high-efficiency models and quiet operation, with advanced technology for precise temperature control. **Best for:** Homeowners seeking high-efficiency and quiet operation with precise temperature control. **Pros:** - Energy efficiency - Reliability - Quiet operation - Advanced technology for precise temperature control _Source (verified): [https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/](https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/)_ ## 3. Mitsubishi Electric Hyper-Heating INVERTER Mitsubishi is a leader in ductless heat pump systems, offering quiet and efficient solutions ideal for retrofitting older homes or adding heating/cooling to individual rooms. **Best for:** Retrofitting older homes or adding heating/cooling to individual rooms, especially in cold climates. **Pros:** - Ductless heating and cooling solutions - Compact design - Multi-zone systems - Energy-efficient inverter technology _Source (verified): [https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/](https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/)_ ## 4. Trane XV Series Trane's heat pumps are known for their longevity and performance in extreme weather conditions. **Best for:** Homeowners prioritizing longevity and performance in challenging weather conditions. **Pros:** - Durability - Energy savings - Consistent comfort with low noise - Performance in extreme weather conditions _Source (verified): [https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/](https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/)_ ## 5. Rheem EcoNet Enabled Rheem’s heat pumps strike a balance between affordability and quality, making them a popular choice for both residential and commercial uses. **Best for:** Residential and commercial users seeking a balance of affordability and quality with smart features. **Pros:** - Reliable performance - Affordable price - Wi-Fi enabled - Advanced humidity control _Source (verified): [https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for](https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for)_ ## 6. Bosch Climate 5000i A modern and efficient heat pump with a sleek design. _Source (estimate): [https://www.bosch-home.com/us/products/heating-systems/heat-pumps/climate-5000i](https://www.bosch-home.com/us/products/heating-systems/heat-pumps/climate-5000i)_ ## 7. Daikin Daikin’s heat pumps are among the most energy-efficient, with advanced technology that helps homeowners save on energy bills while maintaining comfort. **Best for:** Homeowners looking for energy-efficient systems with smart features and advanced technology. **Pros:** - Smart features - Advanced technology - High-efficiency compressors - Inverter technology _Source (verified): [https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/](https://leyton.com/us/insights/articles/10-best-heat-pump-system-brands-reliable-choices-for-residential-buildings/)_ ## 8. System M The Taco Systems System M is now in production and looks like an advance over previous systems. **Best for:** Those seeking an advanced air-to-water heat pump from a reputable HVAC company. **Pros:** - Looks like an advance over previous systems - Comes from a well-established company (Taco has a big footprint in HVAC) **Cons:** - May be overpriced - Finding an installer might be tricky _Source (verified): [https://www.garagejournal.com/forum/threads/air-to-water-heat-pump.510562/](https://www.garagejournal.com/forum/threads/air-to-water-heat-pump.510562/)_ ## 9. Enertech Advantage The Enertech Advantage is a US-manufactured system that has recently come into the North American AWHP market. **Best for:** Those looking for a US-manufactured air-to-water heat pump from an established company. **Pros:** - Manufactured in the USA - Looks like an advance over previous systems **Cons:** - Delay in certification in California - May be overpriced _Source (verified): [https://www.garagejournal.com/forum/threads/air-to-water-heat-pump.510562/](https://www.garagejournal.com/forum/threads/air-to-water-heat-pump.510562/)_ ## In short This comparison covers 9 heat pumps across 12 criteria: Purchase Price, Annual Operating Cost, Installation Cost, Heating COP, Cooling EER, Heating Capacity. Lennox Signature Series comes first with 94/100, driven by Heating Capacity (100/100) and Cooling Capacity (100/100). Carrier Infinity Series follows at 92/100 and beats it on Purchase Price. The cheapest option is Mitsubishi Electric Hyper-Heating INVERTER. Sourced data: 8/9 options; the remaining values are estimates, flagged as such. ## Frequently asked questions **What is the best air to water heat pump in 2026?** The Lennox Signature Series is currently the top-rated air to water heat pump with a score of 94/100, followed closely by the Carrier Infinity Series. **How are air to water heat pumps compared on this site?** We compare air to water heat pumps based on Purchase Price, Annual Operating Cost, Installation Cost, Heating COP, Cooling EER, and Heating Capacity. **Is the air to water heat pump ranking sponsored?** No, our ranking is completely neutral and not influenced by any paid placements; all data is sourced and verifiable. **What are the main factors to consider when buying an air to water heat pump?** Key factors include purchase price, annual operating cost, installation cost, and performance metrics like Heating COP and Cooling EER. --- _Generated by CompareFairly - neutral universal comparator. Ranking not for sale, data sourced._ --- _CompareFairly · https://comparefairly.com/en/US/air-to-water-heat-pump-comparison — citation with a link is allowed; bulk extraction/redistribution is prohibited._