Description
Propane Heater Hose Sized to the Heater Inlet in 3/4 in., 1 in., and 1-1/4 in.
The heater sits outside the site enclosure, and the tank is 40 ft away. A 3/8 in. appliance hose starves a 420,000 BTU/h burner. The Frost Fighter LP/NG hose is the propane heater hose Frost Fighter sizes to its own heaters, in 3/4 in., 1 in., and 1-1/4 in. bores and 25 ft or 50 ft lengths. It carries natural gas too.
Key Features and Benefits
- Bore follows the heater's BTU load and run length, so the burner still sees its minimum inlet pressure at the far end. A propane heater hose that is too small for its length drops that pressure before it reaches the manifold.
- One hose carries propane or natural gas, so a Frost Fighter heater hose bought for a propane job runs the same heater off a natural gas meter next season.
- The 50 ft propane hose connects your LP gas tank to your heater from outside the enclosure. That keeps the tank the 6 ft (IDF) or 10 ft (IHS1500) Frost Fighter requires from the burner and clear of the discharge.
- Three bores and two lengths cover the DF, IDF, IDH, and IHS LP/NG models, so a rental fleet can carry the Frost Fighter hose for each heater it sends out.
- Frost Fighter has built portable heaters in Winnipeg for 60 years, and the hose ships from Canadian stock, so a replacement never waits on US freight.
Choose Your Size
Each Frost Fighter LP/NG hose ships as one bore and one length. Pick the Frost Fighter hose bore from the heater's load and run, then the length from how far the tank sits from the heater.
| Bore | Length | Commonly supplied with |
|---|---|---|
| 3/4 in. | 25 ft | DF400, IDF350, IDF500, IDH200QR, IDH400QR, IDH500QR |
| 3/4 in. | 50 ft | DF400, IDF350, IDF500, IDH200QR, IDH400QR, IDH500QR |
| 1 in. | 25 ft | IHS700H, IHS700P |
| 1 in. | 50 ft | IHS700H, IHS700P |
| 1-1/4 in. | 25 ft | DF1500, IHS1500 |
| 1-1/4 in. | 50 ft | DF1500, IHS1500 |
The DF400 takes a 3/4 in. NPT inlet, the IHS700 a 1 in. NPT inlet, and the DF1500 and IHS1500 a 1-1/4 in. NPT inlet, so the 3/4 in. propane hose, 1 in. hose, and 1-1/4 in. hose match those heaters. The IDF350, IDF500, IDH200QR, IDH400QR, and IDH500QR are supplied with the 3/4 in. size, and the IHS700H and IHS700P with the 1 in. size.
Sizing by Load and Run Length
To size Frost Fighter LP/NG hose, match the bore to the heater's BTU load and the distance from the last regulator to the burner. Frost Fighter's manual puts it plainly: be sure the size of the hose is correct for the BTUs and the length of the hose. The table below comes from the Schedule 40 pipe sizing chart in that manual for propane at 11 in. water column, read at the next load up from each heater's rating.
| Heater load | 25 ft run | 50 ft run |
|---|---|---|
| 350,000 BTU/h (IDF350) | 3/4 in. | 1 in. |
| 390,000 to 450,000 BTU/h (IDH400QR, DF400, IDF500) | 1 in. | 1 in. |
| 500,000 BTU/h | 1 in. | 1-1/4 in. |
| 700,000 BTU/h (IHS700H, IHS700P) | 1-1/4 in. | 1-1/4 in. |
A Frost Fighter heater hose that is right at 25 ft can be a size too small at 50 ft, which is why the IDF350 moves up to 1 in. on the longer run. For the DF1500 and IHS1500 at 1,500,000 BTU/h, the chart moves past 1-1/4 in. beyond a 20 ft run, so confirm the run length with Cleanflow before ordering.
The IDF500 and IHS700 sit on a chart line: dealers supply the bore that matches the inlet, 3/4 in. and 1 in., while the chart reads one size up at 25 ft and beyond, so call us with your run length before ordering.
Regulators and Fittings
A propane heater hose is only as good as the regulator feeding it. Frost Fighter's manual says every LP/NG unit needs a secondary pounds-to-inches regulator, one that drops supply pressure measured in PSI to the inches of water column the burner runs on. Its regulator setup sheet shows where it goes.
Propane above 10 PSI needs a first-stage regulator at the tank and a second stage before the Frost Fighter hose. Natural gas at 1 to 10 PSI takes the second stage only, and natural gas already at 7 to 14 in. water column connects without one.
Regulators and fittings are sold separately. In Canada, a qualified gas fitter must connect the heater and its accessories under gas code B149.1. Frost Fighter also sets a minimum propane cylinder of 100 lb on IDF units and 400 lb on the IHS1500, arranged for vapour withdrawal.
Specifications
The table covers the Frost Fighter heater hose as Frost Fighter and its dealers describe it.
| Spec | Value |
|---|---|
| Fuel | Propane (LP) or natural gas (NG) |
| Bores | 3/4 in., 1 in., 1-1/4 in. |
| Lengths | 25 ft, 50 ft |
| Variants | 6 (three bores, two lengths) |
| Heater inlet connections | DF400 3/4 in. NPT; IHS700 1 in. NPT; DF1500 and IHS1500 1-1/4 in. NPT |
| Supply pressure at the heater inlet | 14 in. water column (1/2 PSI) maximum on every LP/NG model; minimum 5 to 11 in. water column depending on the model |
| Regulators | Sold separately; a second-stage regulator is required on every LP/NG unit |
| Propane setback | Heater more than 6 ft from the tank on IDF units and 10 ft on the IHS1500; IDF units never discharging toward a tank within 20 ft |
| Manufacturer | Frost Fighter Inc. |
| Not suitable for | Liquid propane withdrawal; the cylinder must supply vapour |
Applications
A Frost Fighter heater hose earns its place wherever the heater and the fuel cannot sit together:
- Concrete curing and enclosed pours, where a construction heater gas hose runs from the tank farm outside the enclosure to a heater at the slab.
- Tent and event heating, where the 50 ft propane hose keeps cylinders outside the tent line.
- Oilfield and mining camps on natural gas, where the same hose works as a natural gas hose for heater supply off the site meter.
- Rental fleets, where a spare Frost Fighter hose in each bore keeps a delivered heater running when the customer's own line is undersized.
Buy Frost Fighter LP/NG Hose Online from Cleanflow
Cleanflow Utility Supply Company is an authorized Frost Fighter dealer and stocks the Frost Fighter heaters and accessories the hose connects to. Every propane heater hose ships from Canadian stock. 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 match a hose to your heater.
To buy Frost Fighter LP/NG hose online from Cleanflow, pick the bore and length above. The 3/4 in. propane hose serves the IDF and DF400 units, and the 1 in. propane hose serves the IHS700H and IHS700P.
Frequently Asked Questions
What type of hose can be used for propane?
A hose made for LP gas, with fittings matched to the appliance inlet, is the only type to use. The Frost Fighter LP/NG hose is made for propane and natural gas and sized by bore and length to the heater it feeds. Never substitute a water, air, or torch hose.
Can I join two hoses to reach the tank?
Yes, but every joint on a construction heater gas hose is a leak point. Frost Fighter's sizing rule counts the full run, so two 25 ft hoses need the bore of one 50 ft propane hose. A propane extension hose that steps down a size starves the burner.
Which Frost Fighter heaters use the 1-inch propane hose?
The IHS700P and IHS700H at 700,000 BTU/h; the IHS700 manual lists a 1 in. NPT inlet. Frost Fighter's chart puts the IDF500 on 1 in. from 20 ft. on. The 1-inch propane hose comes in both lengths; the Frost Fighter heater hose in 3/4 in. remains the IDF supply.
Can I use the same hose for natural gas and propane?
Yes. The Frost Fighter hose carries either fuel. Only the regulator train changes. As a natural gas hose for heater supply at 7 to 14 in. water column, it needs no regulator. On the heater, a red-handled ball valve switches the manifold between fuels.
Does it come as a propane heater hose with regulator?
No, the hose ships alone. Every Frost Fighter LP/NG heater needs a secondary pounds-to-inches regulator, sold separately, and propane above 10 PSI needs a first stage. A propane tank to heater hose without that regulator cannot bring tank pressure down to the 14 in. water column the burner inlet accepts.
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