rinnai tankless water heater

Guide to Tankless Water Heaters in Kansas City

KC Plumber Pro installs tankless water heaters for residential and commercial applications. Making the transition over to tankless usually involves running new vent out the side of the house. The energy cost for a tankless water heater is usually under $200 per year and may be eligible for additional energy rebates.


tankless water heatersRinnai R94  

  • Energy Star Qualified
  • Energy Factor of .82 for gas or propane
  • Built-in Rinnai Circ-LogicTM recirculation program cycles an external pump at pre-set intervals and temperatures to maximize efficiency and comfort (see brochure for more details)
  • Certified for Installation in Manufactured (Mobile) Homes
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Temperature lock function prevents accidental or unauthorized changes to water temperature

Warranty details residential

Heat exchanger 12 years

All other parts 6 years

Labor 1 year




In order to install a tankless water heater, it may be necessary to run a larger gas line to the appliance. Most tankless units will require at least 3/4″ supply to meet demand. A tankless water heater will generally run around 195,000 btu, a normal water heater will generally run at about 40,000 BTU.

Another requirement to consider when converting to tankless is the incoming gas pressure for the house. If you live in an area where gas supply in unusually low, you could have issues with the performance of your unit. A manometer will test the incoming gas pressure, this should be the first step before installing any tankless water heater.

Installing gas lines require a specific license and should involve additional training. A pressure test is required for alterations to a residential or commercial gas line.