Search  for anything...

B20TNB-BB Ventless Natural Gas Blue Flame Space Heater with Thermostat Control for Home & Office, 20000 BTU, Heats Up to 950 Sq. Ft., Includes Wall Mount, Base Feet, and Blower, Black

  • Based on 35 reviews
Condition: New
Checking for product changes
$199.82 Why this price?

Buy Now, Pay Later


As low as $33.30 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Nov 25
Order within 21 hours and 7 minutes
Available payment plans shown during checkout

Size: 20000 BTU


Style: Natural Gas


Features

  • TECHNOLOGY: This compact Blue Flame mini heater produces 20000 Maximum BTU using Natural Gas and heats up to 950 sq. ft. area; This is a great heater for office, bedroom, living room, and other residential use
  • DEPENDABLE: Thermostat control on the heater offers Low-Med-High Thermostat Control; Ideal for greater heat flow that could add a warm atmosphere as a small space heater
  • STYLISH: Without compromising function for beauty, this versatile small heater has been redesigned for a slim & modern profile to effortlessly fit in your room; Mount on a wall with included hardware or place on a floor with Base Feet (Included)
  • SAFE: Push button ignition with built-in pilot oxygen depletion sensor (ODS) immediately shuts down the garage heater if carbon monoxide or lack of oxygen is detected; ANSI Certified to ensure safety
  • CONVENIENT: No electricity is required for this personal heater, making it perfect for power outages or any in-house emergencies; Includes Wall Mount, Base Feet, and Blower

Description

The Bluegrass Living ventless blue flame gas wall space heater operates on Natural Gas and gives you 20,000 Maximum BTU of reliable supplemental heat that can heat up to 950 sq. ft of living space. The space heater is perfect for not only just taking the chill out of the room but also for keeping your area warm on even the coldest winter days. Blue flame vent-free gas space heaters are clean burning, fuel efficient and safe to use. This gas heater works much like a central heating system in that it heats the air in the room by circulating warm comfortable air throughout the room. This blue flame cabinet heater is equipped with a thermostat which allows you to maintain and control the desired room temperature. The easy push-button ignition makes it simple to start while the oxygen depletion sensor features an automatic shut- off design to keep your home safe. This heater can be mounted to the wall or the floor with the included mounting brackets and hardware. No electricity is required which is perfect for keeping you warm during power outages. A great additional feature, this heater includes a pre-installed blower which helps spreads warm air throughout the room. The blower has two operating modes, thermostat and manual. In the thermostat setting, the blower will cycle on and off automatically as it senses heat from the heater. In the manual mode, you can choose from either on or off settings. The blower requires standard 120V household current but if the power goes out, your heater will still operate without the blower. Added Value: Base Feet Included, a $50 value! Product Features: •Operates on Natural Gas Only •20,000 Maximum BTU •Heats Up To 950 Sq. Ft. •Thermostat Control - The built-in thermostat automatically cycles the heater on and off to maintain your desired heat setting. Variable heat settings allow you to dial in your comfort level. •Slim cabinet design takes up less room space. •Economical: 99.9% efficient. No outside duct or chimney needed! •Heat for only pennies an hour! •Safety Assurance: O.D.S. (Oxygen Depletion Sensor) included with automatic shut-off. •No electricity required to operate heater! •Push Button Piezo Ignition System. •Includes wall mounting bracket to mount to a wall •Includes base feet to mount to the floor. •Certified to ANSI standards for safe, clean-burning heat. •PFS Certified •Product Dimensions: 24.1" H x 18.46" W x 8" D •Product Weight: 18.9 lbs. •Vent-Free Gas Space Heater Model Number B20TNB-BB •1 Year Limited Warranty What's In the Box •Vent Free Heater - Qty. 1 •Thermostat Blower - Qty. 1 •Wall Mounting Bracket - Qty. 1 •Base Feet - Qty. 2 •Hardware Pack - Qty 1

Brand: Bluegrass Living


Special Feature: Portable


Color: Black


Indoor/Outdoor Usage: Indoor


Product Dimensions: 24"D x 8"W x 18.5"H


Brand: Bluegrass Living


Special Feature: Portable


Color: Black


Indoor/Outdoor Usage: Indoor


Product Dimensions: 24"D x 8"W x 18.5"H


Recommended Uses For Product: Home


Mounting Type: Wall Mount


Room Type: Bedroom, Home Office, Study Room


Heating Coverage: 950 square_feet


Burner type: Radiant


Item Weight: 18.9 pounds


Manufacturer: Bluegrass Living


Country of Origin: USA


Item model number: B20TNB-BB


Care instructions: Hand Wash


Assembly required: No


Number of pieces: 1


Batteries required: No


Included Components: Heater


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great way to heat a room
Size: 20000 BTU Style: Natural Gas
I installed this in a large bedroom. It heats the room very easily as a supplemental heat to my main heat. This room would be in the 50's in the winter, and now it hearts with very little effort. These are all also efficient. My gas bill is hardly changed. The only criticism I have is the fan. I wish it would come in when the heater comes on but it only runs when it gets hot. ... show more
Reviewed in the United States on February 9, 2024 by D. Campbell

  • Great heater!
Size: 20000 BTU Style: Natural Gas
I have a split level house & was tired of heating areas that were not occupied. Put this heater in main living area. It does a wonderful job. The heat rises and the upstairs areas are warmed as well! Love it~
Reviewed in the United States on January 17, 2022 by J S.

  • Heats well, thermostat does its job.
Size: 20000 BTU Style: Natural Gas
Heats very well. You do get window condensation. The fan has never came on auto? But works manually. I would recommend the infrared version as long as you ys it with recommended distances.
Reviewed in the United States on November 4, 2020 by maxxdavid2000

  • Need a 90 degree fitting for the natural gas connection, auto fan has a mind of it's own!
Size: 20000 BTU Style: Natural Gas
Natural gas,20,000 BTU blue flame unit. Puts out plenty of heat. I thought the auto fan was broke but it does come on at strange times. You would think it would come on as soon as the main burner was lit but it doesn't. May come on about 20 min after the main burner and then keeps running after the burner reaches temp and shuts off?? My biggest complaint is when the burner shuts off I get a whiff of gas smell like the gas valve isn't shutting off fast enough. With it just sitting there with the pilot on there is no gas smell, only when the thermostat shuts the burner off. I have checked all the connections for leaks and have not found any. I think I will buy another brand for next winter!!Bought in 2021, 2023 update Whif of gas gone, crazy fan still comes on at weird times but heater still working OK, noticed price has gone up. Company looks like it shut down in 2022 but is back now. Thermostat works OK but it seems to have a + or minus 3 degree dead band on regulating the temperature. Probably normal for a mechanical thermostat! Just glad it has one, grew up with a Dearborn with out one, you were the thermostat!LOL! Noticed in 2024 the price went up, think I paid $139, now $199 WOW! ... show more
Reviewed in the United States on April 6, 2022 by G. Chambers

  • Auto fan only works when heat is very high
Size: 20000 BTU Style: Natural Gas
Auto fan needs to operate at a lower heat setting
Reviewed in the United States on January 4, 2022 by Amazon Customer

  • Love this heater.
Size: 20000 BTU Style: Natural Gas
I am not an expert and wanted to make sure my installation would be safe for my family tight. Simple design makes it easy to find and set the dual gas flame. Mine was already set to Natural Gas but also works with simple adjustment for Propane. Attractive case, solid construction, easy to mount with just a few basic tools and small level. It is nice to be warm and let the blower circulate the heat. ... show more
Reviewed in the United States on November 21, 2021 by Rory G.

  • Stove works well but...
Size: 20000 BTU Style: Natural Gas
The stove had a strong smell of paint for several hours after 1st use. Within 6 hour of run time a large blister of paint burnt off behind the flame. Still works but looks bad.
Reviewed in the United States on January 22, 2022 by JJ JJ

Can't find a product?

Find it on Amazon first, then paste the link below.