Mr. Heater F273704 Buddy Series Propane Hose Assembly, 10-Foot
This is the hose that turns a portable Buddy heater into a bulk-tank appliance. One end threads onto the heater's 1-lb-cylinder inlet, the other end connects to a standard 20-lb propane tank with a soft-nose POL fitting and handwheel, and the 10-foot length is enough to park the tank outside the tent wall or on the other side of the picnic table. Both ends hand-tighten — no wrenches, no thread tape. Mr. Heater specifies the F273699 fuel filter with any hose-and-bulk-tank setup, so budget for that too.
Check Latest Price on Amazon →Why You Need This
A 1-lb cylinder is good for roughly 2.4 hours on a 9,000 BTU Buddy at full output — a cold fall weekend can eat three or four of them, and the camp store sells singles for $5-7 each. Twenty cylinders is the same 430,000 BTU you get from one $20-25 20-lb tank refill. The hose is what moves you from convenience-store pricing to bulk pricing without buying a different heater.
🏆 How It Compares
The cheapest upgrade in the whole heated-tent conversation: $17.99 of hose moves a Buddy heater onto a 20-lb tank and cuts fuel cost by roughly 75-80% per BTU compared with disposable cylinders. Pair it with the F273699 fuel filter, keep the tank outside the tent, and leave a vent cracked.
Pros & Cons
✅ Pros
- Converts a Portable Buddy or Big Buddy from $6 disposable 1-lb cylinders to a $20-25 refillable 20-lb tank — the math pays for the hose in one or two trips
- 10-foot reach lets the tank sit outside the sleeping area instead of next to your head
- Hand-tighten swivel fittings on both ends — no tools and no thread tape needed
- Mr. Heater OEM part built for the Buddy series, so the fittings match the heater inlet without adapters
❌ Cons
- Only fits Mr. Heater Buddy-series appliances designed for 1-lb cylinders — it is not a universal propane hose
- A 20-lb steel tank is car-camping-only gear; you are not carrying this on a backpacking trip
- Mr. Heater requires the F273699 fuel filter in-line with this hose, which is a separate purchase and one more fitting to leak-test
🎯 Who Is This For?
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Frequently Asked Questions
What is the Mr. Heater F273704 Buddy Series Propane Hose Assembly, 10-Foot best for?
Campers who run a Buddy heater more than a weekend or two a season and want to stop buying disposable 1-lb propane cylinders
Who should buy the Mr. Heater F273704 Buddy Series Propane Hose Assembly, 10-Foot?
Fall and winter car campers with a Portable Buddy, Big Buddy, or Tough Buddy who burn through 1-lb cylinders every trip Families running a 6-8 person tent on a cold-weather weekend where a single 1-lb cylinder will not last the night Cabin, deer-camp, and ice-fishing shack owners who want to feed a radiant heater from a tank instead of a shelf of green cylinders Anyone who already refills 1-lb bottles and wants the simpler bulk-tank route for a stationary camp
What problem does the Mr. Heater F273704 Buddy Series Propane Hose Assembly, 10-Foot solve?
A 1-lb cylinder is good for roughly 2.4 hours on a 9,000 BTU Buddy at full output — a cold fall weekend can eat three or four of them, and the camp store sells singles for $5-7 each. Twenty cylinders is the same 430,000 BTU you get from one $20-25 20-lb tank refill. The hose is what moves you from convenience-store pricing to bulk pricing without buying a different heater.
What are the drawbacks of the Mr. Heater F273704 Buddy Series Propane Hose Assembly, 10-Foot?
Owners and reviewers call out a few trade-offs: Only fits Mr. Heater Buddy-series appliances designed for 1-lb cylinders — it is not a universal propane hose A 20-lb steel tank is car-camping-only gear; you are not carrying this on a backpacking trip Mr. Heater requires the F273699 fuel filter in-line with this hose, which is a separate purchase and one more fitting to leak-test
How much does the Mr. Heater F273704 Buddy Series Propane Hose Assembly, 10-Foot cost?
It is listed at $17.99 on Amazon. Prices on Amazon move around, so check the current price before you buy.
What do owners say about the Mr. Heater F273704 Buddy Series Propane Hose Assembly, 10-Foot?
It carries a 4.6-out-of-5 rating from 6,400 Amazon customer reviews.
Have a question we did not answer? The Amazon listing carries the full spec sheet and customer Q&A.
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