I was tired of freezing through my camping trips because my Mr. Heater Big Buddy kept running out of those little 1 lb propane bottles. So I grabbed the Stanbroil 12 ft Propane Regulator Hose with Standard 3/8″ Quick Disconnect for Mr. Heater Big Buddy Indoor/Outdoor Heater to hook it up to a standard 20 lb tank instead.

This 12-foot hose is really built for anyone who wants to run their Big Buddy or Tough Buddy heater for hours without swapping tanks. The solid brass fittings and built-in regulator handle the pressure drop from a big tank down to a safe 11-inch WC output. My only gripe is the hose is fairly stiff in cold weather, but it still works fine. Keep reading to see why this is a solid upgrade.

What Stands Out — Key Features

• 12-Foot Length: The hose is a full 144 inches long, which gives me plenty of reach to place my heater exactly where I want it away from the propane tank.
• Solid Brass Fittings: I appreciate the brass fittings here — they feel durable and resist corrosion better than the cheap plastic ones I’ve seen on other hoses.
• Built-In Regulator: This hose includes a regulator that drops the high pressure from a 20 lb tank down to a safe 11-inch WC output, so my Big Buddy runs perfectly.
• Quick Disconnect: The female 3/8-inch quick connect on the heater end snaps onto any standard male SAE fitting in seconds, which saves me from fumbling with wrenches.
• Rated for 80,000 BTU/HR: With an 80,000 BTU per hour rating, this hose easily handles the full output of my Big Buddy heater without any restriction.
• Pressure Tested to 600 psi: The hose material is tested to handle up to 600 psi, and it’s stretch tested to 400 psi, so I trust it won’t burst under normal use.
• No Tools Required: I had this hose connected and running in under two minutes right out of the box — the hand wheel tightens easily by hand.

Full Specifications

Pros & Cons — The Honest Take

For me, the pros far outweigh the cons — the brass build and regulator setup make this a no-brainer upgrade for anyone running a Big Buddy on a big tank. The cold-weather stiffness is minor, and I can live with it for the convenience this hose gives me.

⚖️ How Does It Compare?

I picked the ATKKE 12 Feet Propane and the Alloxity 12FT Two Stage as the closest alternatives because they’re also 12-foot hoses designed for Mr. Heater-style connections. Both are popular on Amazon, but they have different strengths worth knowing about.

If you’re on a tight budget and already have a regulator on your heater, the ATKKE hose is a solid cost-saving pick. But if you camp in sub-freezing conditions and want the most consistent propane flow, the Alloxity’s two-stage regulator is worth the extra cash. For most people though, I think the Stanbroil hits the sweet spot with its built-in single-stage regulator and proven 4.6-star rating from over 700 buyers.

How It Actually Performs

Setup and Ease of Use

I had this hose connected to my Mr. Heater Big Buddy in under two minutes flat. The hand wheel makes tightening the female quick connect onto the standard 3/8-inch male SAE fitting super simple, and I didn’t need a single tool. The regulator is already built into the hose assembly, so it’s truly ready to use right out of the box — just screw the QCC1 end onto your 20 lb tank and you’re good to go.

Propane Flow and Heating Performance

With an 80,000 BTU/HR rating, this hose handles everything my Big Buddy can throw at it without any restriction. The regulator drops the high pressure from my 20 lb tank down to a steady 11-inch WC output, and I noticed my heater ran consistently for hours without flickering or struggling. I tested it on a 35°F evening in my camper, and the heater maintained a comfortable temperature the whole time with zero pressure drops.

Build Quality and Durability

The solid brass fittings feel substantial and I expect them to outlast any rubber or plastic connectors I’ve used before. The hose material itself is stretch tested to 400 psi and pressure tested to 600 psi, which gives me confidence it won’t burst or leak under normal use. My only complaint is that the hose gets noticeably stiff when the temperature drops below freezing, making it harder to coil up after use.

Safety and Leak Prevention

I did a soapy water test on every connection point after installation and found zero bubbles, confirming the airtight seal. The brass fittings paired with the hand-tightened quick connect create a snug fit that I trust for indoor use in my camper. The regulator also prevents over-pressurization from larger tanks, which is critical when you’re running a heater in an enclosed space overnight.

Who Is This Propane Hose Best For?

After using the Stanbroil 12 ft Propane Regulator Hose with Standard 3/8″ Quick Disconnect for Mr. Heater Big Buddy Indoor/Outdoor Heater for several camping trips, I’ve got a clear picture of who will love it and who should keep shopping.

✅ This Is a Great Fit If You…

• Own a Mr. Heater Big Buddy or Tough Buddy and want to ditch those expensive 1 lb disposable propane bottles for a 20 lb tank that lasts for days.
• Need a 12-foot hose with a built-in regulator so you don’t have to buy extra parts — this one handles up to 80,000 BTU/HR and drops pressure to 11-inch WC.
• Want a tool-free setup with a hand-tightened female quick connect that snaps onto any standard 3/8-inch male SAE fitting in seconds.
• Camp in your RV or camper and need a hose long enough to place the heater where you want it, safely away from the propane tank.

❌ You Might Want to Look Elsewhere If…

• You regularly camp in sub-freezing weather — the hose gets stiff below 32°F and can be a pain to coil up when it’s cold.
• You need a two-stage regulator for the most consistent propane flow in extreme conditions, since this is a single-stage design.
• You’re connecting to a heater that already has its own regulator built in — you’d be better off with a simpler hose without a regulator to save money.

For most people running a Big Buddy or Tough Buddy off a 20 lb tank for weekend camping or backup home heat, this hose is my top pick. It’s the most straightforward, hassle-free solution I’ve found that doesn’t require any extra parts or tools.

Common Issues & Fixes

After running this hose through several camping trips in different weather, I ran into a few hiccups that are worth knowing about. Here’s what I found and how I fixed each one.

Hose Gets Stiff in Cold Weather

The problem: Below freezing temperatures make the 12-foot hose noticeably stiff and harder to coil up after use.

My fix: I bring the hose inside my camper for about 10 minutes before packing it away, which softens the material enough to coil it neatly. If you’re storing it long-term, keep it in a heated space to prevent the rubber from setting in a stiff position.

Quick Connect Doesn’t Snap On Easily

The problem: The female quick connect can be tight when first attaching it to a new male SAE fitting, making you think it’s not aligned properly.

My fix: I apply a tiny drop of silicone lubricant to the male fitting before connecting — this helps it slide on smoothly. Just make sure the hand wheel is fully tightened after the snap to prevent any gas leaks.

Regulator Whistles at High Flow

The problem: When running the Big Buddy on its highest setting, I noticed a faint whistling sound coming from the regulator area.

My fix: This is actually normal for single-stage regulators operating near their 80,000 BTU/HR limit. I turned the heater down one notch and the sound disappeared completely without affecting the heat output in my camper.

Hand Wheel Feels Small With Gloves

The problem: The hand wheel for tightening the quick connect is small, making it tricky to get a good grip when wearing thick winter gloves.

My fix: I use a pair of pliers wrapped in electrical tape to gently tighten it further if needed — just don’t overtighten or you could damage the brass threads. For most setups, a firm hand-tighten is plenty to create a leak-free seal.

Warranty & Support

Stanbroil offers a 30-day return guarantee through Amazon, which gives you a month to test it out and send it back if it doesn’t work for your setup. For any warranty claims or issues beyond that, you’ll need to check the specific warranty details on the product listing page. I haven’t had to use it myself, but the solid brass construction and 600 psi pressure rating suggest this hose should hold up for years of regular use.

My Final Verdict

After weeks of testing the Stanbroil 12 ft Propane Regulator Hose with Standard 3/8″ Quick Disconnect for Mr. Heater Big Buddy Indoor/Outdoor Heater, I’m honestly impressed. The solid brass fittings, built-in regulator dropping pressure to 11-inch WC, and 80,000 BTU/HR capacity make this a no-brainer upgrade for anyone running a Big Buddy off a 20 lb tank. I’d recommend it to campers and RV owners who want a tool-free setup, but not if you regularly camp below freezing where the hose stiffens up.

The cold-weather stiffness is my biggest gripe, but it’s not a dealbreaker — I just bring the hose inside to warm up before packing it. For the convenience of never swapping 1 lb bottles again and the peace of mind from that 600 psi pressure rating, I’d buy this again in a heartbeat.