NTI Boiler and Indirect Water Heater Squeezed Into a Slim Utility Closet

Not every home gives you a dedicated mechanical room. Sometimes you're working with a narrow utility closet and about two feet of wiggle room. That's exactly what we were dealing with here - and it's the kind of challenge that separates a clean, professional install from a messy one.

We went with an NTI wall-hung boiler paired with an indirect water heater. NTI makes a high-efficiency condensing boiler that punches well above its weight - great heat output, reliable controls, and a compact footprint that makes it a natural fit for tight spaces. The indirect tank works alongside the boiler to deliver consistent domestic hot water without a separate water heater running on its own energy source. One system doing two jobs.

The copper piping is where a lot of the work is. In a space this narrow, every run has to be planned out carefully. You can't just throw connections together and hope for the best. The layout has to be logical, accessible for future service, and - honestly - it should look good too. Sloppy installs in tight quarters have a way of creating headaches down the road.

We also included a whole-home sediment filter and backflow preventer as part of the setup. Those aren't always top of mind for homeowners, but they protect both the equipment and the water supply - especially important when you're running an indirect system that feeds into your domestic hot water.

Small spaces don't have to mean compromised performance. With the right equipment choices and a team that knows how to plan a layout, you can get a fully capable heating and hot water system into almost any corner of your home.