AquaStar Tankless Water Heaters by Bosch and fueled by Propane (LP) and Natural Gas AquaStar's line of Tankless Water Heaters are available in both Propane Gas (LP) and Natural gas. There are 3 sizes that can be used in single or multiple unit installations to deliver continuous hot water in residential and commercial applications. 240FX - Enough hot water for 2 showers at one time! 125X - Battery Sparked Ignition - no outside power required 125FX - Electronic Ignition with a built in power vent 125B - Standing pilot 125BS - Standing pilot used for Solar applications 125BL - High usage in conjunction with a holding tank 38B - Small usage for sinks and other low flow needs Please click on the links and "Pricing" Button for more information and prices. AquaStar 240FX Model 240FX (Formally known as the T-K1) This large Gas or Propane Water Heater will produce enough hot water for 2 showers running at the same time! The AquaStar 240FX is very efficient and has a built in power vent. Technical Information about the 240FX Applications - and Versatility of the 240FX 240FX Vs Tanks - 240FX wins! Accessories for the 240FX 240FX Warranty AquaStar 125X Inside View 125 Model 125X Developed by Bosch engineers, the 125X introduces the first battery sparked ignition tankless water heater to the U.S. market. Because the heater uses no energy when idle, the 125X has an energy factor of .80 ­ the average storage tank heater has an energy factor of just .59. The frame, heat exchanger, burners, and gas valve are the same as the reliable 125B. Technical Information about the 125X Applications Power Venting 125X Warranty Model 125FX The New! the 125FX is the same great water heater as the 125X - but with a built in power vent. Technical Information about the 125FX Applications 125FX Warranty Model 125B The 125B is the right size model for most homes and is the ideal household water heater. It offers the same high performance of the 125X, but has a standing pilot. Technical Information about the 125B Applications Power Venting 125B Warranty Model 125BL This model is designed for recirculating to a storage system, for commercial water heating, and for hydronic and radiant space heating up to 150° F. Technical Information about the 125BL 125BL Indirect Application Power Venting 125BL Warranty Model 125BS Specifically designed as a backup to preheated water such as that produced by solar or wood heating systems. The burners turn off when the preheated water is already at the desired temperature. Is perfectly suited for solar applications. Technical Information about the 125BS 125 BS Solar Application Power Venting 125BS Warranty Model 38B This very small tankless water heater is ideal for cottages, camps, and other applications such as farms and ranches. The 38B can also be used in smaller heating (baseboard and radiant) and recirculating applications up to 30,000 BTUs. Not used for running showers. Technical Information about the 38B Power Venting 38B Warranty HouseNeeds, Inc. Post Office Box 525, Warren, Vermont 05674 802-583-2726

Install Manuals Design Features & Specs AquaStar FAQ's U.S. Department of Energy's Report on Tankless Water Heaters Great News for Oregon Residents! Specials and other fine deals! Factory Reconditioned T-K1 on sale for $799 Special! Factory Reconditioned AquaStar 125B on sale for $399 Special!