We had to remove a cracked and leaking old Weil-McLain gas 80% efficient combination boiler and tankless water heater. It was a tight closet. Our client opted to have us upgrade everything to a 95% efficient gas, made-in-the-USA Lochinvar Noble combination 2-zone heating boiler with built-in tankless hot water. We also installed an Aqua-Pure 904 series whole house water purification filter. We use the AP917HD-S filter cartridge for 5-micron sediment filtration, as well as scale and corrosion inhibitors and a carbon block component to improve taste and remove odors from water throughout the entire plumbing system. Our client will now use 33% less gas and will receive a gasnetworks rebate of $2,400 for upgrading to a high-efficiency system. If you are in the Chelmsford, MA, area and are interested in getting a quote to upgrade your home's heating or cooling system, please contact us at: https://dibaccoplumbing.com/contact/