Tankless Water Heaters Direct

Heaters in This Catalog

AquaStar 125FX

New! Bosch! Electronic Ignition - built in Power Vent for side wall venting. Propane or Natural Gas. This Whole-House Tankless Water Heater will deliver up to 3.2 gallons of hot water per minute (gpm).

AquaStar 240FX

Powerful, versatile and efficient tankless water heater - fueled by gas or propane. This Gas Water Heater is big enough to provide hot water for up to 2 showers at the same time!

AquaStar 125X

Bosch Electronic Ignition - powered by 2 "D" Cell batteries. Propane or Natural Gas. The 125X Water Heater will deliver up to 3.2 gallons of hot water per minute (gpm).

AquaStar 125BS

From Bosch - Backup Tankless Water Heater for Solar Hot Water Applications. Propane or Natural Gas. Provides enough hot water for 1 shower and a little more - up to 3.2 gallons per minute.

AquaStar 125B

By Bosch! Standing Pilot - Fuel Efficient Natural Gas or Propane. Efficient and economical.

AquaStar 125BL

For High Demand Systems used in conjunction with a stand-alone tank. Propane or Natural Gas. Provides enough hot water for 1 shower and a little more - up to 3.2 gallons per minute.

PowerStar

Electric Heater Whole-House - Efficient Electric Tankless Water Heater 2 Sizes PS19T with up to 2.6 gpm and PS28T with up to 3.8 gpm in a box a little more than 1 foot square.

Ariston

Water Heaters 3 Sized - GL 2.5, GL 4 and GL 6+ For Point-of-use on demand needs. Used for one, two or up to three sinks. Easy to Install under a sink or in a cabinet.

PowerStream

Water Heater Instant Electric Tankless Water Heater in 6 sizes. New model PowerStream RP12T has a built in thermostat to allow you to plumb in hot water.

Gas and Propane Heaters27 pages

Whole-house and point-of-use heaters fueled by natural gas, propane or oil.

• AquaStar Gas and Propane Tankless Water HeatersProduct family
• Takagi Gas and Propane Tankless Water HeatersProduct family
• Toyotomi Oil-Fired Tankless Water HeatersProduct family

Electric Heaters15 pages

Whole-house and under-sink electric heaters, sizing data and warranty terms.

• Ariston Electric Mini-Tank Water HeatersProduct family
• Envirotech ESI Whole-House Electric Tankless Water HeatersProduct family
• PowerStar Whole-House Electric Tankless Water HeatersProduct family
• PowerStream Point-of-Use Electric Tankless Water HeatersProduct family
• Stiebel Eltron Point-of-Use Electric Water HeatersProduct family

How Tankless Works3 pages

Plain explanations of demand water heating, standby loss and running cost.

• Demand, Tankless and Instantaneous Water Heaters ExplainedReference guide
• How Demand Water Heaters Work and What They SaveReference guide

Radiant and Hydronic2 pages

Radiant floor heat, PEX tubing and the hydronic supplies used alongside them.

• Hydronic Heating SuppliesReference guide
• Radiant Floor Heat and PEX TubingReference guide

Program Notices

State credit, loan and rebate programs recorded on this site for tankless water heater installations.

• Massachusetts Rebates for Tankless Water HeatersAttention Massachusetts Residents: Low Cost Loans for installing an energy efficient Tankless Water Heater
• Nebraska Low-Interest Loans for Tankless Water HeatersAttention Nebraska Residents: Low Cost Loans for installing an energy efficient Tankless Water Heater
• Oregon Tax Credit for Tankless Water HeatersAttention Oregon Residents: Energy Tax Credits for installing an energy efficient Tankless Water Heaters