Tankless Water Heater in Lone Tree, CO

Lone Tree is a planned, newer city at the I-25 and C-470 junction, built to high design standards around Park Meadows and the RidgeGate community. Most homes have garages or mechanical rooms near an exterior wall, which keeps a tankless vent short. The gas line and the right size of unit are the main things to settle.

What to do now

1. Find your water district. West of I-25, Southgate Water & Sanitation distributes Denver Water drinking water; east of I-25, Parker Water & Sanitation District serves; some homes in Terra Ridge along Indian Wells Drive are on Northern Douglas County Water & Sanitation District.
2. Check hardness. For the Southgate area, Denver Water's report lists average hardness of about 105 ppm, a moderate level that calls for regular flushing. East-side owners should check their district's report.
3. Have the gas load calculated. Xcel Energy supplies gas. A tankless burner draws heavily at full fire, so the plumber totals your appliances and measures the line from the meter.
4. Plan the vent and drain. A sealed vent out a wall or roof, plus a condensate drain for condensing units.
5. Apply for the permit. Lone Tree takes applications and inspection requests electronically only, through its Accela portal.

Symptoms and likely causes

Cost factors

Gas line upsizing, vent length, condensate drainage, unit size and any recirculation add-on drive the price. The permit is part of the job: the City of Lone Tree Building Division (720-390-5211) requires permits for work on plumbing and gas systems, including new water heaters. Southgate also reminds owners that they own the buried water service line and sewer lateral serving their property, so problems found there are the owner's to fix. If you smell gas, leave the house, then call 911 and Xcel Energy at 1-800-895-2999.