Maryland Shopper Finds $0.00 Heat Pump Water Heater Deal
A Pepco instant rebate reportedly brought the price of a $1,800 Rinnai unit to zero before the offer closed.
Updated on Nov. 3, 2026 in Couponing
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A Maryland shopper reported that a high-efficiency heat pump water heater could be obtained at $0.00 through an instant Pepco rebate available through Halloween. The shopper still had to pay sales tax on the original $1,800 purchase price.
Why it matters
Utility rebates can sharply reduce the upfront cost of higher-efficiency appliances for Maryland households. Reddit commenters noted that installation costs were not covered by the rebate, which can be substantial.
The shopper's cart showed an estimated $0.00 total for the 50-gallon, $1,800 Rinnai unit after the Pepco rebate, with sales tax still owed. A Reddit commenter cited an estimated $5,000 installation cost that the rebate did not appear to cover.
The players
Pepco
Pepco is the regional electric utility serving parts of Maryland and Washington, D.C., which offered the instant rebate on heat pump water heaters.
Rinnai
Rinnai is a Japanese manufacturer of water heaters and heating equipment, whose 50-gallon super high-efficiency unit was the model priced at $1,800 in the shopper's cart.
The details
The original poster shared the finding on Reddit's r/HeatPumps forum, where commenters warned that installation costs fall outside the rebate. The Pepco rebate window for heat pump water heaters has since closed.
Timeline
The instant Pepco rebate for heat pump water heaters was available through Halloween.
The article was published on November 3, 2026.
Market Landscape
Utilities and local governments frequently offer incentives for higher-efficiency water heater upgrades, and heat pump models are a central target of these programs. Cala's customizable smart heat pump water heaters illustrate the expanding range of options competing in this segment.
Maryland homeowners who plan to replace an aging water heater may be able to lower the purchase price with utility incentives, provided the rebate window is open. Buyers should budget separately for sales tax and installation, which the rebate did not appear to cover.
The takeaway
Before buying a water heater, check your utility's current rebate list and request a full installation quote, since the rebate may not cover labor. Compare the total installed cost against the quotes you receive from other providers.
Further reading
Find more money-saving tips in our Couponing section.
Source note: This article includes information reported by The Cool Down.
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