Whole Home Tankless Water Heaters

Whole-home tankless water heaters deliver endless hot water with compact, energy-smart designs. Shop natural gas/propane and high-output electric models, in indoor or outdoor versions, with options for built-in recirculation, Wi-Fi/app control, and clean concentric or twin-pipe venting. Finish installs with vent kits, isolation/flush valves, filters, and maintenance parts.

Shop by need

Fuel & power: Natural Gas (NG), Propane (LP), or 240V electric
Location: Indoor (vented) or Outdoor (climate/permitted)
Type: Condensing (highest efficiency) or Non-condensing
Recirculation: built-in pump models, recirc-ready units, or add-on kits
Venting: concentric or 2-pipe (PVC/CPVC/PP as specified) with terminations and pipe covers
Kits & parts: isolation/flush valves, condensate neutralizers, controllers/Wi-Fi modules, filters, and service parts

Quick choosing guide

Size by demand: total your peak fixtures and calculate required GPM at your winter temperature rise. Whole-home gas units typically cover multi-bath demand; electric whole-home requires adequate amperage and is climate-dependent.
Pick fuel & service: verify gas meter/line capacity and regulator for NG/LP models, or panel amperage/breaker space for electric.
Choose location: Indoor where you can vent; Outdoor where climate/clearances allow and venting is impractical.
Efficiency & condensate: condensing units save energy—plan a drain and consider a condensate neutralizer.
Faster hot water: select a built-in recirc model or add a recirc kit/crossover; set schedules to cut wait time.
Complete the kit: vent kit/terminations, isolation/flush valves, controller or Wi-Fi, and inlet water filtration/scale control as needed.
Maintenance: flush/descale periodically (more often with hard water) to protect the heat exchanger.

Pro tips: Size from the coldest inlet temperature, verify gas line and meter capacity (or electrical service for electric units), and map the vent path before mounting. Neutralize condensate on condensing models, install isolation valves for easy flushing, and follow local code for gas/electrical and combustion air. Not sure which unit or kit fits? Tell us fuel type, location, and demand—we’ll build a dialed-in list.

Whole Home Tankless Water Heaters

Shop by need

Quick choosing guide

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