AWHP is Lochinvar\'s residential heat pump water heater — based on the AO Smith Voltex platform but shipped with Lochinvar control packages and sold through the Lochinvar contractor channel. For boiler-heated homes that want DHW separated from the boiler, AWHP fits cleanly.
The lineup
- AWHP-50 — 50-gallon; 2-3 person households
- AWHP-66 — 66-gallon (volume pick); 3-5 person households
- AWHP-80 — 80-gallon; 5-6 person households
Why an AO Smith subsidiary sells heat pumps under Lochinvar branding
Lochinvar contractors are typically boiler-and-hydronic specialists, not standard tank installers. They have customers asking about heat pump water heaters for IRA tax credit reasons, and Lochinvar wants to keep that business in-channel. Same Voltex compressor and tank platform as AO Smith Voltex Hybrid, Reliance HPHE, and State Premier Hybrid, but with Lochinvar contractor support and parts channel.
Specs
| Model | Gallons | UEF | FHR |
|---|---|---|---|
| AWHP-50 | 50 | 4.0 | 54 |
| AWHP-66 | 66 | 4.0 | 67 |
| AWHP-80 | 80 | 3.85 | 92 |
IRA tax credit + rebates
- IRA federal tax credit: 30% of cost up to $2,000 (Section 25C). All AWHP models qualify
- State rebates: CA, MA, NY, NJ, OR, VT, WA stack additional $500-1,500 utility/state rebates
- Best-case stack: AWHP-66 at $1,999-2,399 minus 30% federal + $1,000-1,500 state/utility = net $500-1,200
Install requirements
- 240V 30A dedicated circuit
- 700+ cubic feet unconditioned air space (non-negotiable)
- Condensate drain — gravity or pump
- Ambient 40-90°F for full heat pump operation
- Drain pan above living space
When AWHP makes sense in a boiler-heated home
- You want DHW independent of the boiler (continues during boiler service/outage)
- You want to claim the IRA $2,000 tax credit (SQUIRE indirect doesn\'t qualify)
- You\'re planning to switch from boiler heating to heat pump heating eventually — keep DHW heat-pump-based now
- Long off-seasons (summer) where running the boiler exclusively for DHW is inefficient
When SQUIRE indirect beats AWHP
- Cold-climate heating-dominant homes where the boiler runs most of the year — SQUIRE inherits 90%+ efficiency for free
- Tight install spaces without 700+ cu ft air room
- Very cold basements (below 40°F) where AWHP reverts to resistance backup
Warranty
- 10-year tank warranty
- 1-year parts
- 1-year labor
Bottom line
AWHP is Lochinvar\'s answer for hydronic-home customers asking for the IRA-credit-eligible heat pump water heater. Same hardware as AO Smith Voltex; Lochinvar-channel support. AWHP-66 is the volume pick.