Reliance Controls Furnace Transfer Switch-TF151 at The Home Depot
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Reliance Controls

Model # TF151

Internet # 202216476

Furnace Transfer Switch

Reliance Controls Furnace Transfer Switch

This item has been discontinued.
The Home Depot no longer carries this specific product.

$92.97 / each
Item cannot be shipped to the following state(s): GU,PR,VI


In Stock



Model # TF151

Internet # 202216476

The Reliance Controls single-circuit 15 Amp furnace transfer switch is designed for use with generators equipped standard 5-15, 15 Amp power outlets. It allows manual control of a single circuit, such as a forced-air furnace, in the event of a power failure. The attached 18-inch flexible aluminum conduit is pre-wired and allows the unit to be easily connected at the circuit breaker panel, the furnace, or at any point in between. It can be used on any 15 Amp 120-volt forced-air furnace circuit. Simply plug a standard grounded extension cord into a power outlet on your generator and into the flanged inlet plug included with the transfer switch or hardwire to a remote power inlet box.

  • Indicator light illuminates the front of the switch under generator power
  • For use with generators up to 1850 running watts
  • Listed by Underwriters Laboratories Inc.
  • 5-year warranty


Assembled Depth (in.)  4.5 in  Assembled Height (in.)  7.5 in 
Assembled Width (in.)  4.25 in  Automatic/Manual  Manual 
Certifications and Listings  1-UL Listed  Electrical Product Type  Transfer Switch 
Manufacturer Warranty  5 years  Maximum Amperage (amps)  15.0 A 
Maximum Wattage  1850 W  Number of Phases 
Power Distribution Features  No Additional Features  Product Depth (in.)  4.5 
Product Height (in.)  7.5  Product Weight (lb.)  3.5 lb 
Product Width (in.)  4.25  Returnable  90-Day 
Voltage (volts)  125 


Rated 4.9 out of 5 by 13 reviewers.
Rated 5 out of 5 by Simple and straight forward Installed at the furnace instead of at my power panel since the panel is in a bedroom closet and I didn't want to tear up the Sheetrock to do it. See Picture. Added yellow 12/2 wire between new duplex outlet box and furnace. Wired transfer switch using the included flex conduit to the outlet box. Made all connections in the outlet box. End result: My UV air purifier light is on the protected circuit along with the furnace. It all works quite well, and I'm thinking of getting another transfer switch for a different circuit that I'd like to protect. Took maybe 20 minutes to think about how I wanted to install this, a trip to the local store for the outlet and box, and about an hour to install and clean up the area. I like it, and it's clean and simple. Mounted everything high up on the wall to keep it out of the way, but still reachable when I need it. July 26, 2013
Rated 5 out of 5 by Excellent Product!!! Easy to install. Allows homeowner to utilize portable generator to power the furnace in the event of a power outage. Only 4 wires to connect. Saved money by installing it myself without the need to hire an electrician. Quick tip: Can test unit without starting the generator. Simply run an extension cord from another electrical outlet and plug it in to the transfer switch. If you went to the trouble of buying a generator you should definitely buy this product to ensure you can heat your home if the power outage occurs during the winter months. January 3, 2012
Rated 5 out of 5 by A great product. Excellent instructions. Every aspect of this product is great. I purchased two transfer switches (at different times) and I always received very quick delivery. I am very pleased with the entire transaction as well as the switches. December 10, 2013
Rated 5 out of 5 by Easy to install Installed on the single circuit feeding my natural gas hot water furnace in case of a power outage. Connections to the main breaker was quick and easy. Installing an outside receptacle to feed the power to the transfer switch took the most time, but worth it instead of running an"extension cord" from the outside. Perfect for single circuit isolation of appliance's less than 15 amps. January 22, 2013
Rated 5 out of 5 by Another well made, easy to install product from Reliance Bought and installed this furnace transfer switch for a friend who didn't want the expense of a multi-circuit whole house unit.For someone who only wants to be able to heat their house with a generator in an emergency, for about a hundred bucks, this is the way to go.Reliance makes good stuff. I've installed one of their 10-circuit kits in my home and helped a neighbor install another.They provide great technical support through their website and by phone.Since this switch is grounded directly to the main panel during installation, the generator requires no additional grounding cable, as long as it's plugged into the transfer switch. You can still run additional extension cords from the generator to power additional needs in the house. January 1, 2013
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