---
product_id: 458233584
title: "Mr Heater MH18B Portable\"Big Buddy\" Heater [Kitchen & Home] [Kitchen & Home]"
brand: "mr. heater"
price: "€ 11.14"
currency: EUR
in_stock: false
url: https://www.desertcart.hr/products/458233584-mr-heater-mh18b-portablebig-buddy-heater-kitchen-and-home-kitchen
store_origin: HR
region: Croatia
---

# Lightweight 6.53 kg portable design Heats up to 450 sq ft Up to 18,000 BTU heat power Mr Heater MH18B Portable"Big Buddy" Heater [Kitchen & Home] [Kitchen & Home]

**Brand:** mr. heater
**Price:** € 11.14
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Stay warm, stay ahead — heat your space like a pro!

## Quick Answers

- **What is this?** Mr Heater MH18B Portable"Big Buddy" Heater [Kitchen & Home] [Kitchen & Home] by mr. heater
- **How much does it cost?** € 11.14 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/458233584-mr-heater-mh18b-portablebig-buddy-heater-kitchen-and-home-kitchen)

## Best For

- mr. heater enthusiasts

## Why This Product

- Trusted mr. heater brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Simple Operation:** Single-speed control for hassle-free warmth whenever you need it.
- • **Spacious Coverage:** Efficiently warms up to 450 square feet—perfect for home, kitchen, or office zones.
- • **Sleek & Bold Design:** Striking red and black finish that complements modern interiors and outdoor setups.
- • **Powerful Heat Output:** Choose from 4,000, 9,000, or 18,000 BTUs to conquer chilly spaces effortlessly.
- • **Portable & Lightweight:** At just 6.53 kg, take your cozy comfort anywhere without breaking a sweat.

## Overview

The Mr Heater MH18B 'Big Buddy' Portable Heater delivers versatile propane-powered heat with selectable outputs of 4,000, 9,000, or 18,000 BTUs, efficiently warming up to 450 square feet. Its compact, lightweight design (6.53 kg) and bold red/black aesthetic make it an ideal, stylish solution for portable indoor or outdoor heating needs.

## Description

Mr Heater MH18B Big Buddy Portable Heater Green/Red MH18B

## Features

- BTU Output: Utilizing propane gas and featuring an impressive 4,000, 9,000 or 18,000 BTUs of heat output, the Big Buddy Portable Heater is capable of heating up to 450 square feet of enclosed space
- BTU Output: Utilizing propane gas and featuring an impressive 4000 9000 or 18000 BTUs of heat output the Big Buddy Portable Heater is capable of heating up to 450 square feet of enclosed space

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Mr. Heater |
| Model Number | F274800 |
| Color | Red and Black |
| Product Dimensions | 18.9 x 18.3 x 11.9 cm; 6.53 kg |
| Auto Shutoff | No |
| Number of Speeds | 1 |
| Special Features | Portable |
| Item Weight | 6.53 Kilograms |

## Product Details

- **Brand:** Mr. Heater
- **Special features:** Portable
- **Colour:** Red and Black
- **Form factor:** Compact and Portable
- **Indoor/outdoor use:** Indoor

## Images

![Mr Heater MH18B Portable"Big Buddy" Heater [Kitchen & Home] [Kitchen & Home] - Image 1](https://m.media-amazon.com/images/I/51cO3ACCD4L.jpg)
![Mr Heater MH18B Portable"Big Buddy" Heater [Kitchen & Home] [Kitchen & Home] - Image 2](https://m.media-amazon.com/images/I/41FxuZZiwYL.jpg)
![Mr Heater MH18B Portable"Big Buddy" Heater [Kitchen & Home] [Kitchen & Home] - Image 3](https://m.media-amazon.com/images/I/71OHTeb0dXL.jpg)

## Questions & Answers

**Q: why is this advertised  for in home use when the instructions specifically sate this is a life hazard?**
A: A few factors enter into whether you can use this inside your home. I have been using mine in living room like a fireplace for 4 years now. My house is over 100 years old, with old windows so I get alot of oxygen coming in through them. I use a 20lb tank I bought new with a hose & regulator. Every time I get it refilled I use a gas sniffer I bought to check all the connections. The only time I have it on is when I'm in room watching TV. They have to say don't use it inside in instructions to protect them from lawsuits from people who are careless.

**Q: Is this safe to use in a closed up house in case of electric power loss?**
A: I've used the smaller "Buddy" unit for a day in a "power outage drill" and was fine with it.  I even put a CO detector nearby just incase, but it never went off.  You do need to beware that it burns gas and uses oxygen, yet I think of it like a gas stove burner going.  They suggest in the manual to "Open a window at least 8 square inches for ventilation", yet how many people open a window if they'll put the potatoes on to boil for an hour on a gas stove?  So it will do the job of heating and you may need to vent after a couple days, yet keeping a window open like that may be extreme (where it's stated more for avoiding law suits than really needed).  There's also thing to think about like they say "Floors may have fading from the radiant heat" where there's things like that to consider when choosing where to place it.  Also it's against fire codes to bring any tank bigger than 1 pound inside, yet on high this will burn 1 pound in 1.5 hours showing why many want a 20 pound or bigger tank as a supply.  I considered kerosene heaters for such, yet didn't like the $8 a gallon price of fuel for them and they have the same burning gas risks etc.  Running a generator to run electric heaters can burn near a gallon of gas an hour for a couple space heaters (3000 watt load) showing what it's cost to run will be.  So not a lot of choices that make sense.

**Q: how long does it last? If I use it in my shop can I leave it running overnight at a low setting so my stuff doesn't freeze? Thanks in advance**
A: With this on "Med" so 1 burner is bright red, you burn 1 pound of gas in 3 hours.  Having it on low will burn about 1/2 that, so 2 small tanks could last 12 hours.  Connecting a refillable tank may be well worth it since those small tanks are $3 each for 1 pound (or a quart or propane), you can get tanks refilled for $3 a gallon.  Hoses like the F271803 or F273704 will connect this up to a refillable tank.

**Q: Would this work for a baseball game. Or do you need some sort of enclosure to trap heat?**
A: The Big Buddy id designed to be used in enclosed spaces and won't heat a large space outdoors.  However, it could take the chill off those who are sitting reasonably close to the front of it, especially if the built in fan* is used to blow warm air towards the user(s).  *The Big Buddy's fan can be run on batteries placed in the back of the unit or with  an electrical adaptor that can be purchased separately on Amazon.

## Frequently Bought Together

- Mr. Heater Big Buddy Indoor/Outdoor Portable Propane Heater
- Mr. Heater Buddy Series Hose Assembly - 10-ft., Model# F273704
- Mr. Heater Fuel Filter for Big Buddy & Portable Buddy F276163

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/458233584-mr-heater-mh18b-portablebig-buddy-heater-kitchen-and-home-kitchen](https://www.desertcart.hr/products/458233584-mr-heater-mh18b-portablebig-buddy-heater-kitchen-and-home-kitchen)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-04*