100-Year-Old Boiler Replaced with High-Efficiency Combo Unit in Longmont

That old boiler had clearly been in that basement for a very long time. We're talking a massive, heavily insulated cast-iron unit with crumbling exterior wrap, a web of old galvanized pipes running in every direction, and an overall setup that belongs in a museum - not heating a home in 2024. It still worked, technically. But 'technically working' and 'working well' are two very different things.

We pulled that old system out and installed a new Navien combination boiler in its place. A combo unit handles both home heating and domestic hot water in one compact, wall-mounted package. That means less equipment, a smaller footprint, and one efficient system doing the work of two. The new copper piping runs clean and organized, and you can see the Energy Star badge right on the front of the unit - that's not just a sticker, it reflects real efficiency gains over what this home had before.

With a system this old, the concern isn't just comfort - it's reliability. Aging boilers can develop serious issues fast, and when they go down in the middle of a cold stretch, you're not just uncomfortable, you're scrambling. Getting ahead of that is exactly what this homeowner did.

If your boiler is pushing 20, 30, or more years old, it's worth having someone take a look before it becomes an emergency. We work with homeowners throughout Longmont and the surrounding area to assess, service, and replace aging heating systems. Sometimes a tune-up buys you more time. Sometimes a replacement is just the smarter call. Either way, we'll give you a straight answer.