5.28 GPM Condensing Residential Natural Gas Tankless Water Heater
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- Where is the 5.28 GPM Condensing Residential Natural Gas Tankless Water Heater cheapest?
- At ThermoMate, for $559.99, as of our latest check.
- What do buyers say about the 5.28 GPM Condensing Residential Natural Gas Tankless Water Heater?
- Rated 4.9 out of 5 from 26 ratings. Buyers like: Easy installation with basic plumbing knowledge; Compact size frees up space and fits neatly on a wall; Instant, steady hot water with no fluctuations. Common complaints: Shuts off when water flow is lower than full blast, leaving you in the cold.
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- ThermoMateNew
In stockReturn policy
$559.99Observed Nov 1, 2026, 4:17 AM
From ThermoMate
- 5.28 GPM flow rate and 114,000 BTU output deliver hot water to 3–4 fixtures at once
- 0.86 UEF efficiency with up to 15% energy savings versus non-condensing units
- Dual heat exchanger: stainless steel condensing exchanger plus oxygen-free copper exchanger
- Flow sensor and microchip adjust heating power 20,000 times per second, holding fluctuations within ±1°F
- 3.5-inch LED touchscreen adjusts temperature 90°F–140°F and shows flow, flame and fan status
- 8 safety protections including boil-dry, freeze, flame-out, overheating and pipe blockage
- Materials
- Corrosion-resistant stainless steel condensing heat exchanger with oxygen-free copper heat exchanger
- Fit
- Wall-mounted; 21"H x 13"W x 7"D, saves more than two-thirds the space of traditional tanks
- Care
- Install an external condensate neutralizer kit (sold separately) to neutralize the mildly acidic condensate water
- Guarantee
- Comprehensive Warranty System; optional 1- or 2-year extended protection available after the standard manufacturer warranty ends
- Returns
- 30-day return for new and unused items; buyer's remorse returns refund 80% of the total, defective returns get a full refund
- Shipping
- Free shipping to U.S. Mainland addresses only; Alaska, Hawaii, Virgin Islands, Puerto Rico, Guam and Canada ship at the customer's cost; rates are weight-based
- In the box
- Water Heater x1, Installation Kit x1, User Manual x1
About the 5.28 GPM Condensing Residential Natural Gas Tankless Water Heater
Get Endless Hot Water with Maximum Efficiency – Upgrade to the ThermoMate CZ480NG Condensing Tankless Water Heater and enjoy unlimited, on-demand hot water for your home. With a 5.28 GPM flow rate and 114,000 BTU output , this advanced system delivers hot water to 3–4 fixtures simultaneously – perfect for busy households. Say goodbye to cold water shocks and waiting for the tank to refill.
Save Energy & Reduce Utility Costs – This condensing tankless water heater achieves a high 0.86 UEF efficiency , offering up to 15% energy savings compared to non-condensing units. Its innovative dual heat exchanger system combines a corrosion-resistant stainless steel condensing exchanger with an oxygen-free copper heat exchanger to capture and reuse heat normally lost by traditional water heaters, maximizing energy efficiency and minimizing operating costs.
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