Viessmann B1HA 125,000 BTU Vitodens 100-W Gas-Fired Wall-Mounted Condensing Boiler - Heat Only

Gas-fired wall-mounted condensing boiler with modulating stainless steel cylinder burner and Inox-Radial heat exchanger surface. Features: Fits any home and budget with high performance at an attractive price Outstanding efficiency of 95% A.F.U.E. on all models Fully-modulating input eliminates energy waste Lasting performance with proven Viessmann stainless steel InoxRadial heat exchanger constructed to CSA B51 and ASME Section IV Low-emission combustion with fully-modulating Viessmann stainless steel MatriX cylinder burner for natural gas or propane; factory calibrated User-friendly backlit LCD touchscreen boiler control with vent length up to 200’ and multiple venting options; rigid and flexible PP(s) vent options Suitable for altitude levels of up to 10,000 ft. / 3,000 m Simple to install and service with 4 pipe hydronic connection design with built-in primary pump and diverter valve Extremely quiet operation; quieter than most refrigerators Limited lifetime warranty in residential applications Ideal a...