






🔥 Elevate your space with instant, reliable warmth — no cold spots allowed!
The Fahrenheat FZL4004F is a high-capacity, fan-forced wall heater delivering 4000 watts of powerful, vent-free heat. Designed for large indoor spaces like entryways, garages, and basements, it features a rugged commercial-grade steel build, an integrated double-pole thermostat (40-90°F), and smart fan delay technology to ensure even, draft-free warmth. Easy to install and equipped with safety auto shutoff, it’s the go-to solution for professionals and homeowners seeking efficient, reliable heating.
| ASIN | B00NY46VEI |
| Best Sellers Rank | #141,294 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #306 in Heaters & Heater Accessories |
| Brand | Fahrenheat |
| Brand Name | Fahrenheat |
| Color | White |
| Customer Reviews | 4.1 out of 5 stars 366 Reviews |
| Form Factor | Wall installation |
| Fuel Type | Electric |
| Global Trade Identification Number | 00685360163413 |
| Heat Output | 4000 Watts |
| Heating Coverage | 400 square feet |
| Heating Element | Electric |
| Heating Method | Forced Air |
| Included Components | FZL4004F |
| Indoor Outdoor Usage | Indoor |
| Indoor/Outdoor Usage | Indoor |
| Item Dimensions D x W x H | 15.75"D x 4"W x 19.1"H |
| Item Type Name | FZL4004F Wall Heater |
| Item Weight | 19.2 Pounds |
| Manufacturer | Fahrenheat |
| Max Temperature Setting | 90 Degrees Fahrenheit |
| Min Temperature Setting | 40 Degrees Fahrenheit |
| Model Number | FZL4004F |
| Mounting Type | Wall Mount |
| Power Source | Electric - Hardwired/Non-Portable |
| Recommended Uses For Product | Basement, Family Room, Garage, Office, Vestibule |
| Room Type | Basement, Family Room, Workshop |
| Special Feature | 4000 Watt, High Output |
| Special Features | 4000 Watt, High Output |
| UPC | 685360163413 |
| Voltage | 240 |
| Warranty Description | 1 year |
J**B
We love it!
This is the second Farenheat heater that we have purchased and we love them both. The first one was installed in an outdoor building where I have an art studio. It heats the room very nicely. It is 4 degrees this morning, and keeps the room nice and comfortable. We just installed the second one in our bedroom which is located in an addition in our home which stays cold due to the furnace not forcing enough warm air back to that area. We love it there too. Sure it has a fan noise but it is not at all annoying and we sleep right through it (it beats the cold, sometimes it was 45 degrees in my bedroom in this weather!). Also, it makes sense that the heater should heat up before the fan forces the nice warm comfortable air out. Exactly what the instructions say it should do! The only issue we had was we had to send one heater back, ordered it straight from Amazon and they ship it in it's original packing. The heater was very badly damaged by the time it arrived here. It was replaced but the replacement also had some dings and bends, some which my husband could somewhat fix but it is not cosmetically perfect. With cold weather here and a remodeling project underway we needed to get it installed. The packing within the box was not enough to get it safely through shipping without damages. I left negative reviews for packaging through Amazon. BUT overall we love this heaters!
O**V
Fantastic heater!
This heater works great and doesn't take up any space in your shop area. I use it in an attached 20 foot by 20 foot garage that doesn't have insulation in the ceiling or exterior walls. It heats the area up as hot as you want it. It stays around 40 degrees in the winter and takes about 30 minutes to bring it up to 60 degrees. It takes a 240 volt, 30 amp circuit which most garages don't have so make sure you have the available power or are willing to hire someone to put it in place. VERY pleased with my purchase.
C**.
Effective but loud and plain
We replaced an old bathroom wall heater with this one. It is very plain looking, nothing high tech or fancy about it, just one knob you turn on and off. NOTE: When you first turn it on, you think it doesn’t work. That’s because it takes about 30 seconds as it heats up before the fan kicks on, then it’s powerful! So be patient after you turn the knob on, and know there is a delay before you hear anything happening. It’s not a real quiet fan but does the job of heating very well.
J**D
Holds temperature well
Mounting was easy enough, but I'd have some type of gasket material on hand before installation. The sheet metal housing isn't very well supported and tended to 'buzz' against the wall. I removed the unit and put some adhesive backed foam around the perimeter and reinstalled. Not a big deal, just a caveat before you get started. Unit holds temperature within 3 degrees regardless of ambient variation. It's pretty quiet and overall worth the money. One nice feature is that by simply detaching a jumper wire, it can run at 2000 watts. There was one connection (bayonet type plug) that was loose at the built-in breaker and had to be squeezed with pliers.
K**K
This is a piece of s***
Very cheaply made. The rivets that hold the housing together are loose so the housing rattles. Also the thermostat broke off from the switch itself. This thing is garbage. Spend a little more money and get a better one.
C**A
Don’t let the fan hit the grill. Drop in replacement for Berko discontinued wall heater.
So my review is a little skewed because I bought a “used” item. The wall box was brand new but the grill was bent some and had some scratches I also noticed some denting or marks on the back of the motor. I’m not sure if this was just shipped poorly after being returned without being properly repacked but that’s what it looked like. I was looking to replace a 4800 watt berko unit that the fan went bad on. This unit was a direct replacement for the Berko wall heater I had so I didn’t even need the wall box as it fit right into the existing one. So since I already had the box mounted installation was quick. When I turned it on however it seemed fine but when I shut it off it began making a terrible sound. ( the motor shaft had some play and retracted when turned on but extended slightly when turned off due to centrifugal force.) I ran to shut off the breaker thinking some wires had caught in the fan some how. But when I removed the cover I didn’t see any. So I quickly realized after starting it with the cover off that what the fan was hitting was in fact the grill cover that had been bent in shipping. I pushed on the fan bracket a bit and bent the grill some and just didn’t tighten it as much to the wall and it works just fine. I looked for replacement parts for my old one and this was cheaper then buying replacement parts even if it was a used slightly banged up version. All that out of the way even thought it’s not the quietest form of heat it certainly heats up my ~700 sq foot basement room very well and I often find it getting so warm I have to turn it down or off all together. It really makes the basement area a cozy place to enjoy even in the coldest winters. It requires a dedicated circuit which I already had so you may need an electrician to install it properly at 240volts. But since I was replacing an existing one that was higher wattage this worked perfectly for me and I am an electrician so that helps. If I were going to install a new one I might look for one with some digital controls with additional temp control features and one that is a bit quieter but for what I’m using this for on the occasional chilly nights I want to hang out in the cold basement it has been great.
S**S
Replaced 12 year old heater!
Heater fit in existing location and was easy to install.
M**Y
Works well!
The first heater that we ordered was defective so we received this exact replacement. The fan on the replacement heater was a little loose and wouldn’t turn at first because it was touching the cover. After tightening the bolts on the fan, it works perfectly! Very pleased the heat output and how quickly and hassle free the replacement heater was shipped!
Trustpilot
3 weeks ago
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