• Honeywell 120 V Step Down Transformer
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Honeywell 120 V Step Down Transformer

$61
$25.49
58% off
Honeywell 120 V Step Down Transformer

Honeywell 120 V Step Down Transformer

$61
$25.49
58% off
Found at 12 stores ·Prices updated 9 hours ago 
Store
eBay
$25.49 
Walmart
Honeywell 120 V Step Down Transformer
$26.10 
Open Tip
$27.29 
PlumbersStock
$36.06 
Lowe's
$36.98 
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Reviews

We needed a 24 volt transformer quickly. Home Depot had it and it fixed the problem!

HomeDepotCustomer · Review provided by Home Depot
April 10, 2024

Worked perfectly got the boiler up and running

Electrical guy really kno · Review provided by Home Depot
April 03, 2024

Used as a replacement for my Beacon Morris furnace after 3 oe units failed in 6 months. Not a direct fit but it works perfectly. So far it has outlasted the oe units and was 1/4 the cost.

HomeDepotCustomer · Review provided by Home Depot
March 20, 2024

Returned as the sales person pulled the wrong product

HomeDepotCustomer · Review provided by Home Depot
January 10, 2024

just what the doctor ordered. Resolved the problem with low voltage in the furnace.

HomeDepotCustomer · Review provided by Home Depot
December 17, 2023

Perfect fit in the electrical box for the original transformer (that rates 5 stars). More expensive than it needs to be (that rates 1 star). The low voltage side should be fused. I blew out my original and a replacement before I figured out I had a short in the thermostat wiring. Put in my own in line 3A amp fuse until I found the short.

DYIGuy · Review provided by Home Depot
December 06, 2023

Good price, easy to connect and now my pool heater...

Good price, easy to connect and now my pool heater works!!!!!

Sly · Review provided by Home Depot
June 21, 2023

Not letting out 24 volts bad out of the box...

Not letting out 24 volts bad out of the box

HomeDepotCustomer · Review provided by Home Depot
March 29, 2023

Contractor

You substituted with the wrong one.

MLRichi · Review provided by Home Depot
February 08, 2023

Met my requirements and has been working just fine....

Met my requirements and has been working just fine.

HomeDepotCustomer · Review provided by Home Depot
January 19, 2023

This 24V transformer powers our HVAC system and it failed...

This 24V transformer powers our HVAC system and it failed and left is without heat during a significant atmospheric river storm. The part is exactly what I needed! The only problem was that the Home Depot app said I would have it the next day and it took 4 very cold days to finally get here.

Review provided by Home Depot
January 18, 2023

Bought this transformer as an upgrade to support Eufy dual...

Bought this transformer as an upgrade to support Eufy dual cam door bell as the old transformer did not have enough voltage. Installation was simple and easy and it works perfectly with my new door bell.

Leon · Review provided by Home Depot
December 28, 2022

Working with thermostat, excellent.

Good, transformed, excellent

Review provided by Home Depot
December 21, 2022

Honeywell Home 24-Volt Transformer

Replaced an original transformer on a Goodman gas furnace. Working as expected.

Dingy · Review provided by Home Depot
December 14, 2022

Nice transformer

Technical characteristics as described. Good finish and good quality.

Fabio N · Review provided by Home Depot
May 04, 2022

The transformer is working as intended to supply power to...

The transformer is working as intended to supply power to a smart thermostat on an hvac system that did not have a C wire. You'd really need to check back in 10 years or so to see if it's still working. But it's been there for about a month and so far, so good.

Wayne · Review provided by Home Depot
February 22, 2022

Didn’t work right out of box. Save your receipt and...

Didn’t work right out of box. Save your receipt and box, I destroyed the box opening it. Wasted $35. Second one worked great.

Bc582000 · Review provided by Home Depot
December 29, 2021

Works Well, No Problems

Multiple mounting options. Works!

SJZ · Review provided by SupplyHouse
December 27, 2021

I bought this to power my ecobee smart wifi thermostat. I only had a two wire thermostat, so I in...

I bought this to power my ecobee smart wifi thermostat. I only had a two wire thermostat, so I initially bought one of those plug-in 24v transformers. That worked, but I didn't like the wire dangling along the wall, and I wouldn't be able to mount the thermostat perfectly flush. So I bought this and mounted it with included screw to a knockout in an adjacent light switch electrical box. I made one more hole in the drywall to fish thermostat wire from new transformer to thermostat, and viola, done! I tested the voltage with a Fluke multi-meter, and like the other reviews state, it does put out 27 volts; however, the ecobee powered right up, calibrated itself and is running now for a few days since install. I actually was concerned about heat output of this transformer, since a different branded 18v transformer that I bought to power a Ring doorbell, got really hot. I touched the transformer after install and powered, and I felt no heat. Now the hard part: Patching up the holes. [sigh]

J. · Review provided by Home Essentials Direct
July 09, 2021

Received in timely manner. Installed. Turned on. Immediately let out a scream and went up in smok...

Received in timely manner. Installed. Turned on. Immediately let out a scream and went up in smoke. Defective transformer.

William · Review provided by Home Depot
June 24, 2021
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Overview

We found this at 12 stores including Walmart, Open Tip, and PlumbersStockThis product sells from $25.49 up to $61. Users can save 58% by shopping at eBay.

Prices are currently low for this product, typically ranging from $26 to $49, and the lowest price we've seen is $14.

This product is also marketed as the 

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Description

This Honeywell 120V Universal Mount Step Down Transformer is perfect for 24V output control systems. Reliable and efficient, it's CSA and UL listed, making it a versatile and high-quality choice for various industries.