Brand ThermoMate
Features Electric, Low Noise Operation, Advanced Flow Regulation, Multiple Safety Protections, High Energy Efficiency, Dual Heat Exchanger, 0.86 UEF efficiency, Smart Diagnostic Display, 3" OD vent, UL-approved, 7-section Burner, DC High-speed Fan, Oxygen-free Copper Heat Exchanger, Condensing, Integrated Error Code Indicator
Mounting Location Indoor, Wall, Whole House
Power Source NG (Natural Gas)
Voltage 120 V
Heating System Instantaneous (Tankless)
Type Tankless Water Heater/Boiler
Color Silver
Water Temperature Range 90℉ to 140℉
Item Width 13.8 in
Item Height 21.7 in
Water Connection Location Bottom
Water Connection 3/4 in NPT
Gas Inlet 1/2" NPT
BTU/h Heating Rating 114,000 BTU
Water Heater Profile Large
Minimum Flow Activation Less Than 1 gpm

Check the listing for details. ThermoMate 5.28GPM Condensing Tankless Water Heater 114KBTU 0.86 UEF Natural Gas. Color: Silver, Condition: New. Listed at 559.99 USD. ✅ Dual heat exchanger (stainless steel + oxygen-free copper) captures waste heat, saving you 15% energy vs non-condensing units. 0.86 UEF, real efficiency. ✅ Two showers at once? Yes. At 65°F inlet, get 105°F at 2 GPM each. No cold shocks. Smart chip adjusts power 20,000x/sec, keeping temp within ±1°F. ✅ Freeze protection down to 41°F – ceramic heating cores auto-activate, no burst pipes. 8 built-in safety protections. ✅ 3.5" LED touchscreen shows real-time flow, fan speed, flame status, and error codes. DIY-friendly with standard 3/4" NPT water & 1/2" NPT gas connectors. Compact 21"H x 13"W – fits in a closet. ⚠️ Condensate water is mildly acidic. Use a neutralizer kit (sold separately) to protect drains – standard for condensing units.

$280.00
$559.99