---
product_id: 248081713
title: "20,000 BTU Vent Free Blue Flame Dual Fuel Heater"
brand: "mr. heater"
price: "₨309119"
currency: LKR
in_stock: true
reviews_count: 8
category: "Mr. Heater"
url: https://www.desertcart.lk/products/248081713-20-000-btu-vent-free-blue-flame-dual-fuel-heater
store_origin: LK
region: Sri Lanka
---

# Heats up to 700 sq. ft. Battery-operated ignition 20,000 BTU power 20,000 BTU Vent Free Blue Flame Dual Fuel Heater

**Brand:** mr. heater
**Price:** ₨309119
**Availability:** ✅ In Stock

## Summary

> 🔥 Heat smarter, live warmer — no vent, no limits!

## Quick Answers

- **What is this?** 20,000 BTU Vent Free Blue Flame Dual Fuel Heater by mr. heater
- **How much does it cost?** ₨309119 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/248081713-20-000-btu-vent-free-blue-flame-dual-fuel-heater)

## 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

- • **No Venting, No Wires:** Enjoy clean, vent-free heat with zero electricity required—perfect for any indoor space.
- • **Smart Safety Systems:** Built-in dual Low Oxygen Depletion sensors and fail-safe fuel selector knob ensure peace of mind.
- • **Dual Fuel Flexibility:** Seamlessly switch between propane and natural gas for ultimate convenience and savings.
- • **Effortless Installation:** Includes wall mounting hardware and battery-operated spark ignition for quick, hassle-free setup.
- • **Powerful 20,000 BTU Output:** Instantly warms spaces up to 700 sq. ft. with efficient blue flame technology.

## Overview

The 20,000 BTU Vent Free Blue Flame Dual Fuel Heater delivers powerful, vent-free heating for indoor spaces up to 700 sq. ft. Featuring dual fuel capability (propane and natural gas), battery-operated electronic ignition, and built-in safety systems, it offers efficient warmth without the need for electricity or outdoor venting. Wall mounting hardware included for easy installation, making it an ideal supplemental heater for modern homes and workspaces.

## Description

Mr. Heater certified dual fuel vent free heaters are your perfect supplemental heating solution. This blue flame 20,000 BTU heater comes with integrated electronic ignition and on-board thermostat for superior temperature control. With wall mount hardware included, installing and starting the unit is a breeze. Mr. Heater provides peace-of-mind with a patented, two-step fuel connection process to eliminate wrong-fuel hook-up. Featuring a clean burning blue flame tube, the heater uses natural convection properties to circulate warm, comfortable air. With factory installed dual, Low Oxygen Safety System, you can be confident and comfortable for years to come.

Review: Good Heater - This is my second Mr. Heater propane heater. The last one lasted for 5 years of heavy use. This one works well so far. Easy to install. One Big Problem......IT TOOK OVER A MONTH TO ARRIVE. Shipped USPS.
Review: Warm and cozy for the cars. 🚗 - Love it, looks great and will heat the garage nicely, easy to install and added the blower for more even heat. Using the propane feature now but will convert to natural gas in the spring.

## Features

- 20,000 BTU/HR
- Heats up to 700 sq. ft.
- Battery Operated Electronic Spark Ignition (Battery included)
- Built-in adjustable thermostat
- No electricity required
- No outdoor venting required
- Indoor safe
- Dual LP/NG Low Oxygen Depletion Systems
- Fail Safe Fuel Type Selector Knob
- Wall Mounting Hardware Included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08DRWHNXD |
| Batteries | 1 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #197,181 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #519 in Indoor Space Heaters |
| Brand | Mr. Heater |
| Burner type | Radiant |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (47) |
| Date First Available | July 28, 2020 |
| Form Factor | Cabinet |
| Fuel Type | Natural Gas, Propane |
| Heating Coverage | 700 sq. ft. |
| Included Components | Wall Mounting Hardware Included |
| Indoor/Outdoor Usage | Indoor |
| Item Package Quantity | 1 |
| Item Weight | 20.8 pounds |
| Item model number | MHVFDF20BFT |
| Manufacturer | Enerco Group Inc. |
| Material | Steel, plastic |
| Mounting Type | Wall Mount |
| Number Of Pieces | 1 |
| Part Number | F299320 |
| Product Dimensions | 11.42"D x 20.28"W x 25.51"H |
| Recommended Uses For Product | Garage, Home |
| Room Type | Bedroom, Home Office, Living Room |
| Size | 20000 |
| Special Feature | Adjustable Temperature |
| Special Features | Adjustable Temperature |
| UPC | 089301004863 |
| Warranty Description | 1 Year Limited |

## Product Details

- **Brand:** Mr. Heater
- **Color:** White
- **Form Factor:** Cabinet
- **Indoor/Outdoor Usage:** Indoor
- **Special Feature:** Adjustable Temperature

## Images

![20,000 BTU Vent Free Blue Flame Dual Fuel Heater - Image 1](https://m.media-amazon.com/images/I/81io355qpML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Heater
*by R***B on November 26, 2025*

This is my second Mr. Heater propane heater. The last one lasted for 5 years of heavy use. This one works well so far. Easy to install. One Big Problem......IT TOOK OVER A MONTH TO ARRIVE. Shipped USPS.

### ⭐⭐⭐⭐⭐ Warm and cozy for the cars. 🚗
*by R***A on December 10, 2025*

Love it, looks great and will heat the garage nicely, easy to install and added the blower for more even heat. Using the propane feature now but will convert to natural gas in the spring.

### ⭐⭐⭐ poor assembly, orifices were installed in the wrong place
*by A***G on December 21, 2025*

the natural gas pilot would not stay lit. after messing with it for an hour, I took it apart to see if there was an obstruction in the orifice. and I found that they installed the propane orifice in the natural gas side of the heater. I switched them and it worked perfectly. good thing I am a handy guy. most people would have never figured that out. they should pay more attention when assembling these heaters, a mistake like that could be disastrous for someone. other than that the heater works perfectly. only gave 3 stars for poor assembly.

## Frequently Bought Together

- Mr. Heater MHVFDF20BFT 20,000 BTU Vent Free Blue Flame Dual Fuel Natural Gas and Propane Heater For Cold Rooms, Additions, Sun Rooms & Cabins - White
- Mr. Heater F299201 Vent-Free Blower Accessory Kit (2016-present), Multi
- Mr. Heater F273684 Vent Free Accessories, Black

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**Shop now:** [https://www.desertcart.lk/products/248081713-20-000-btu-vent-free-blue-flame-dual-fuel-heater](https://www.desertcart.lk/products/248081713-20-000-btu-vent-free-blue-flame-dual-fuel-heater)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-08*