Lowe's is the secondary big-box retailer for Rheem residential water heaters. Selection is narrower than Home Depot — Lowe's primary water heater partnership is with AO Smith, so Rheem stocking varies more by store. This page covers what to expect when buying Rheem at Lowe's.
Rheem at Lowe's — typical in-store stock
Lowe's store-by-store Rheem inventory is less consistent than Home Depot's. Common items:
- Performance 40G and 50G gas atmospheric — usually in stock
- Performance 40G and 50G electric — usually in stock
- Performance Plus 50G gas — in larger stores
- RTEX electric tankless (RTEX-13, RTEX-18) — on shelf in plumbing aisle
What's typically NOT in store at Lowe's:
- Performance Platinum (Lowe's tends to emphasize AO Smith Signature 100 in this tier)
- ProTerra heat pump (special order)
- Marathon Lifetime (special order)
- RTGH gas tankless (online order only at most stores)
Online order with Lowe's home delivery is available for the full Rheem catalog, typically 5–10 business days.
Lowe's install services for Rheem
Lowe's offers water heater installation through their contractor network. Pricing and process are similar to Home Depot:
- Standard tank-for-tank swap: $400–$700
- Code-required upgrades billed separately
- Permit and inspection coordination included
- Old-unit disposal included
The installing contractor is regional — quality varies. Same caveats as Home Depot install apply.
Rheem at Lowe's vs Home Depot
The honest comparison:
- Selection: Home Depot has broader Rheem stock. Lowe's emphasis is on AO Smith.
- Pricing: typically within $20–$50 of each other on the same Rheem SKU
- Install service: roughly equivalent
- Warranty service: identical — both go through Rheem directly at 1-800-621-5622
If your local Lowe's stocks the model you want and the price is competitive, there's no functional reason to drive to Home Depot. If you need anything beyond the volume Performance models, Home Depot will have it in stock more often.
Lowe's MyLowes Pro (for contractors)
Similar to Home Depot Pro Xtra, MyLowes Pro offers volume pricing, bulk delivery, and contractor-specific support for licensed plumbers and HVAC professionals buying Rheem at Lowe's.
Common Lowe's Rheem promotions
- Seasonal promotional pricing — typically tracks Home Depot's
- Bundled tank + install promotions appear occasionally
- Special-event flash sales on tankless (RTEX-18) and ProTerra heat pump
Bottom line
Lowe's is a fine retail option for Rheem if your local store stocks what you need. Selection is narrower than Home Depot — Lowe's tends to favor AO Smith for the residential water heater category. For broader Rheem context see our Rheem water heater lineup. For Home Depot specifics see our Home Depot Rheem hub.