Tankless is not a magic sticker. At 5,280 feet the burner, the vent run, and the incoming water temp all change the math. We install condensing tankless — Navien and peers — so you get the recovery you were promised on a January morning in Erie, not a brochure from sea level.
When tankless is the right call
- You run out of hot water with back-to-back showers
- You want wall space back in a small mechanical closet
- You’re already opening the gas line or venting for another job
- The old tank is leaking over a finished basement
What most Denver installs get wrong
Undersized gas. PVC venting that’s too long, too many elbows, or dumped somewhere it will ice. No isolation valves, so the first descaling becomes a teardown. Recirc loops that short-cycle. We size the gas, set concentric or twin-pipe venting to code, add service valves, and talk through whether you actually need a pump or just better fixtures.
Maintenance is not optional here
Front Range water scales heat exchangers. A yearly flush is cheaper than a failed exchanger out of warranty. We’ll put you on a simple service rhythm and show you the ports so you’re not stuck with a mystery box on the wall.
- Navien and condensing systems
- Gas and venting sized for altitude
- Descaling that matches Front Range water