ROUNDUP: WATER HEATERS
stability. Bosch Greentherm condensing tankless water heaters offer maximum efficiency all the time— at high and low flow rates. The wall-mounted units offer optional connection to 1 / 2-inch gas line and multiple venting options including fast and simple concentric PP up and out, 2” venting options, and up to four-unit cascades vented together through a sidewall or roof with the new Polypropylene Common Venting System from Bosch. Bosch – www. Boschheatingandcooling. com
DUNKIRK WATER HEATERS Need an easy domestic hot water solution with a low operating cost and the longevity of stainless steel? Dunkirk now offers a complete line of stainless steel, single-coil indirect water heaters; single and dual coil indirect storage tanks, as well as hydronic buffer tanks. The Dunkirk H2O Series is the perfect complement to our innovative wall-hung modulating condensing boilers. ECR International, Inc. – www. dunkirk. com
INDIRECT WATER HEATERS, STORAGE TANKS AND HYDRONIC BUFFER TANKS FROM HEAT-FLO Heat-Flo Heating Products offers a full line of high quality stainless steel water heating products in sizes from 22 to 115 gallons. Indirect water heaters and storage tanks have top connections for an easy, clean installation and include a welded stainless cold-water dip tube, ¼-turn drain and T & P valves factory installed. No tees or extra piping needed. High Output commercial indirect heat exchangers accept up to 495,000 BTU / HR boiler input. All products are proudly manufactured at our facility in Massachusetts Heat-Flo – www. heat-flo. com
E-ZEE FLOW MARINE SERIES POOL HEATERS FOR SALT-WATER POOLS AND CORROSIVE APPLICATIONS E-ZEE FLOW heat exchangers extend the pool season economically by using existing boilers to heat the pool— saving money on installation, operating costs and reduced maintenance requirements for residential and commercial facilities. Now, the Marine Series offers a unique response for the growing demand to support salt water pools and corrosive applications. E-ZEE FLOW pool heaters are also available in 316L Stainless Steel for chloride pools and non-corrosive water conditions. Units are available 45k to 1 million BTUs.
E-ZEE FLOW also heats spas and hot tubs. Diversified Heat Transfer, Inc. – www. dhtnet. com
LAARS-STOR STAINLESS STEEL INDIRECT WATER HEATER Laars Heating Systems’ new Laars-Stor Stainless Steel Indirect Water Heater offers long life and heating output. High-grade 444 passivated stainless steel used for the tank and heat transfer coil is lightweight and resists corrosion. Each Laars-Stor Series model includes the Laars Total Performance System, designed to reduce sediment buildup, increase first-hour rating and minimize temperature buildup in the tank for enhanced efficiency, long operational life and minimized fuel bills. Laars-Stor SS is available in 29-, 38-, 50-, 73-, and 111-gallon sizes. AHRI performance certified, with a Limited Lifetime Warranty. Laars Heating Systems- www. laars. com
WATTS RADIANT’ S R-FLEX, A PRE- INSULATED PIPING SYSTEM One of the fast-emerging“ green” changes we are seeing in the heating industry today is the use of ultra-efficient, low NOx, wood boilers or water-to-water geothermal systems. Each of these require the transportation of heated water trenched underground to remote locations where heat is then distributed. Getting that heat to points of interior comfort, without losing precious BTUs, can be a challenge. To address these and many other needs, Watts Radiant has a flexible, pre-insulated piping system called R-flex™. R-flex consists of Single or Dual PEX carrier pipe( s) surrounded by a thick layer of cross-linked PEX foam insulation. All of this is protected by a thick, double-wall corrugated outer shell. Single or Dual R-flex maintains tighter bends for easier handling and faster installations. The benefits of the unique design are low water vapor absorption, enhanced R-value, and excellent resistance to extreme temperatures. Double wall casing offers superior protection against heat loss. Watts Radiant – www. wattsradiant. com
WEIL-MCLAIN AQUA PRO WATER HEATERS The new Aqua Pro indirect-fired water heaters feature a non-metallic, corrosion resistant design for first hour ratings and recovery. Built with durability and longevity in mind, the AHRIcertified Aqua Pro units are available in four www. fueloilnews. com | FUEL OIL NEWS | JULY 2025 27