Rinnai Tankless On-Demand Water Heater Sales & Service

How does heating 30, 40, sometimes 50+ gallons of domestic hot water 24 hours per day, 365 days per year make any sense and also be cost effective? It doesn’t. No more than having a heating system (oil or LPG boiler) that doubles as your source for domestic hot water. That’s like having the TV/VCR combination unit from the 1980’s! Something happens to one and chances are you’re out both! Wouldn’t it be more

practical and economically sound to allow your expensive central heating system to do what it does best; heating your home all winter and then rest during the summer months? Leave the job of making hot water to an appliance that is made, and proven to be the ultimate choice and the industry standard.

Rinnai has set the bar in the on-demand hot water heating industry! No other maker of on-demand water heaters can hold a candle to Rinnai. Just think of how wonderful it would be having hot water only when you need it. And, how amazing to have hot water as long as you want it without running out and going cold! With a Rinnai on-demand tankless water heater your water will stay hot as long as there is propane in your tank, and when you turn the hot water faucet off, that’s it, the tankless water heater sits quietly waiting to serve you again.

Give OPS a call and get in on the biggest secret everyone already knows about.

TWH Venting Examples

  1. Managing Director
  2. Managing Director
  3. Managing Director
  4. Managing Director
  5. Managing Director
  6. Managing Director
  7. Managing Director
  8. Managing Director

Rinnai Tankless Water Heater (TWH) Flush & Annual PM Service


Orion Propane Services (OPS) offers Annual Preventative Maintenance (PM) Services for their Rinnai Tankless Water Heater customers (All models included.). This yearly service is sanctioned and recommended by Rinnai. The vinegar flush helps eliminate minerals that can impede water flow and affect the taste of the water passing through. Cleaning the heat exchanger removes any calcium build-up, dirt particles, insects and leaves drawn in through the outside air intake. Inspection of the exhaust allows obstructions to be cleared and ensuring a secure fit. What does OPS do for you that the others don’t and what’s so unique about OPS’s Annual PM Services?
OPS will notify you when your Rinnai Tankless Water Heater is due for annual PM Service, leaving you free of the task of keeping your own schedule and trying to remember to call for an appointment.
OPS, unlike most other PM Service providers, does a complete and thorough check and testing of the ENTIRE LPG system in your home. This step includes proper LPG supply pressure testing and LPG operation pressure testing and adjustments, plus leak testing throughout the LPG.


$135 includes; (4) gallon vinegar flush for 40-60 minutes, complete cleaning of heat exchanger, cleaning of igniter electrodes cleaning (or replacement if needed), vent inspection for debris and secured fit, *water filter screen cleaning, interior water leak inspection, LPG system Inspection/LPG testing (Leaks & Proper Volume), LPG connective piping painting (if originally installed by Orion Propane Services.

Important Note: The vinegar flush portion of this service is only effective on Rinnai Tankless Water Heater units installed with hot/cold water isolation valve systems. These isolation valve systems are included with all Rinnai TWH models since 2014. Most Rinnai TWH units installed before 2014 have isolation valve systems bought separately. In the event that a Rinnai TWH unit does not have an isolation valve system, only the vinegar flush portion of the service is not possible. All other features of the Annual PM Service are still available.

* Cleaning of the water filter screen pertains only to the water screen installed on the Rinnai TWH unit directly, or attached isolation valve system. This does not include any water treatment system filters, or water neutralizing filters, or parts of said systems.

Multiple LPG appliance Annual PM Service discounts are available! Just ask!