Description
First Stage Propane Regulator for the Two-Stage Heater System
Product Overview
A propane tank delivers up to 250 PSI. A Frost Fighter IDF heater's manifold regulator tolerates only 14 in. water column, about 1/2 lb. More pressure damages it. The Frost Fighter 50276A is a first-stage propane regulator that sits at the tank and drops pressure to 10 PSI. This LP gas regulator feeds the 50274A second stage, which finishes the drop to burner level.
Key Features and Benefits
- This Frost Fighter 1st stage regulator is a Fisher R622H regulator. The 3/4 in. NPT connections and 7/32 in. orifice handle up to 2,400,000 BTU/hr of propane, enough for every IDF heater.
- A built-in relief valve and inlet screen protect against overpressure. Gauge taps on both ports allow pressure testing without breaking the line.
- The regulator operates from -20 to 160 F. UL listed, CRN certified, with a 20-year recommended replacement life.
- Pair with the 50274A second stage for a complete two-stage propane regulator system. The 50276A takes the high-pressure drop; the 50274A finishes to burner level.
How the Two-Stage System Works
Every Frost Fighter IDF heater on propane needs a two-stage propane regulator system. The 50276A (first stage propane regulator) takes tank pressure up to 250 PSI and brings it to 10 PSI. The 50274A (second stage) drops 10 PSI to 7-14 in. water column. The heater's manifold regulator then sets the final burner pressure. A propane regulator for heater applications must follow CSA B149.1 in Canada or NFPA 54 in the US.
Which Heaters Use It
This Frost Fighter 1st stage regulator fits all IDF and OHV heaters on propane. Cleanflow stocks the IDF350 and IDF500. IDH models may also use this LP gas regulator, but Frost Fighter has not confirmed that. Call 1-866-335-1078 to check. IHS700 heaters use a different regulator system (70093B). Natural gas installations may need only the 50274A second stage.
Specifications
| Spec | Value |
|---|---|
| Frost Fighter Part | 50276A |
| OEM Model | Fisher R622H-DGJ |
| Type | 1st stage LP gas regulator |
| Connections | 3/4 in. FNPT inlet x 3/4 in. FNPT outlet |
| Orifice | 7/32 in. |
| Max Inlet Pressure | 250 PSIG |
| Outlet Pressure | 10 PSI factory set |
| Adjustment Range | 8 to 12 PSI |
| Capacity (Propane) | 2,400,000 BTU/hr |
| Vent | 3/4 in. NPT screened |
| Operating Temp | -20 to 160 F |
| Safety | Built-in relief valve, protective inlet screen |
| Certifications | UL listed, CRN certified |
| Replacement Life | 20 years recommended |
| Weight | 2 lbs assembled |
| UPC | 400027002467 |
| Country | USA |
| Fits | IDF and OHV heaters on propane (IHS700: use 70093B) |
| Companion | 50274A 2nd Stage Regulator (required) |
Buy First Stage Propane Regulator Online from Cleanflow
Cleanflow Utility Supply Company is an authorized Frost Fighter dealer and stocks this Frost Fighter 1st stage regulator with other Frost Fighter heater parts and Frost Fighter heaters and accessories. Free shipping on orders over $199.
Returns accepted within 30 days; email info@cleanflow.ca. Ships across Canada and the USA. Call 1-866-335-1078 to confirm your heater model.
Frequently Asked Questions
What does a first stage propane regulator do?
A first stage propane regulator reduces high LP tank pressure (up to 250 PSI) to an intermediate level, typically 10 PSI. A second stage then drops it to the inches of water column range the heater burner needs.
Why do you need a two-stage regulator for a propane heater?
The heater's manifold regulator accepts only 14 in. water column (1/2 lb). A single regulator cannot step 250 PSI down that far in one drop. Two stages divide the work: the Frost Fighter 1st stage regulator brings it to 10 PSI, and the second stage takes it to burner level.
What pressure should a first stage propane regulator be set at?
The 50276A ships factory set at 10 PSI. The Fisher R622H-DGJ has an adjustment range of 8 to 12 PSI. Leave it at the factory setting unless a licensed gas technician determines a different set point for your installation.
How to set up propane for a Frost Fighter heater?
Connect the Frost Fighter 1st stage regulator (50276A) to the propane tank. Run the gas line to the 50274A second stage near the heater. Any propane regulator for heater use must be installed and leak-tested by a licensed gas fitter per local code.
What is the difference between a 1st stage and 2nd stage regulator?
The 1st stage sits at the tank and drops pressure from up to 250 PSI to about 10 PSI. The 2nd stage sits near the heater and brings 10 PSI down to 7-14 in. water column. Both are required on propane. Natural gas setups may need only the 2nd stage.
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