HTP’s Versa-Hydro saves space by combining the equivalent of a 135,000 Btu boiler, an indirect water heater and a buffer tank into one small footprint. The modulating DHW burner operates up to a 5-to-1 turndown ratio, while the space-heating module operates at a 10-to-1 turndown ratio. With 96% thermal efficiency, the Versa-Hydro features a corrosion-resistant cupronickel and stainless-steel heat exchanger and 2” foam insulation on the