Best Fireplace Blower Fan Under $80 (2026): 4 Fans Compared
Four fireplace blower fan kits under $80 compared by airflow, power draw, size, thermostat control, and included parts, from 80 cfm to 160 cfm.
On this page
Top picks at a glance
As an Amazon Associate we earn from qualifying purchases.
- 1
Best OverallCriditpid GA3750 Kit9.6/10View on Amazon - 2
Best Simple ReplacementCriditpid GA3650 Fan9.6/10View on Amazon - 3
Best Thermostat KitAdviace FK24 Kit9.5/10View on Amazon - 4
Best Compact KitAdviace GFK21 Kit9.5/10View on Amazon
When the fire is burning well but the warm air stays trapped behind the fireplace doors, the room never feels the benefit of the wood already cut and stacked. A blower fan moves that warm air out into the room, and the best fireplace blower fan under 80 is the kit that fits the fireplace, moves enough air, and controls itself without fuss. We compared four replacement blower kits by airflow, power draw, size, thermostat control, and included parts, using only what each listing states.
FirewoodGearHQ may earn a small commission if you buy through links on this page. The price you pay stays the same. Affiliate disclosure.
Quick picks
- Best Overall Criditpid GA3750 Kit: 160 cfm with rheostat speed control and noise-reducing foam pads Check price on Amazon
- Best Simple Replacement Criditpid GA3650 Fan: 160 cfm blower with noise reduction padding and wide model fit Check price on Amazon
- Best Thermostat Kit Adviace FK24 Kit: 130 cfm with magnetic thermostat and galvanized bracket Check price on Amazon
- Best Compact Kit Adviace GFK21 Kit: 80 cfm compact kit with magnetic thermostat and foam pads Check price on Amazon
The picks
Criditpid BK GA3750 GA3750A GA3700 GA3700A
A replacement fireplace blower fan kit for Desa, FMI, Vanguard and Vexar fireplaces, with rheostat speed control and mounting strips.
Pros
- Highest airflow in this comparison at 160 cfm
- Rheostat variable speed control included in the kit
- Three double stick foam pads help reduce fan noise
- Class H insulation rated to 392°F is stated
Cons
- No warranty term is stated
- Spec table lists included components as cord only, while bullets list a full kit
- Spec table lists material type as wood, with no material stated in the bullets
- Highest power draw in this comparison at 52 watts
Criditpid GA3650 GA3700 GA3750 BK BKT Fireplace
A replacement fireplace blower fan for Desa, FMI, Vanguard, Vexar and Astria fireplaces, with noise reduction padding included.
Pros
- Airflow of 160 cfm matches the strongest figure here
- Noise reduction padding and double-side tape included
- Class H insulation rated to 392°F is stated
- Fits a wide model list across Desa, FMI, Vanguard, Vexar and Astria
Cons
- No warranty term is stated
- No thermostat or speed control is named in the listing
- Spec table lists material type as wood, with no material stated in the bullets
- Same size and airflow as the GA3750 kit with fewer included parts
Replacement Fireplace Blower Fan Kit for Majestic
A replacement fireplace blower fan kit for Majestic fireplaces, with a galvanized bracket, thermostat, and variable speed control.
Pros
- Magnetically mounted thermostat switches the fan automatically at 120° / 90°
- Galvanized mounting bracket helps prevent rusting
- Rheostat variable speed control for full range speed setting
- No designated wall switch is needed because the thermostat controls on and off
Cons
- No warranty term is stated
- Spec table lists compatible devices as radiator, while the title names fireplace blower kits
- Lower airflow than the Criditpid kits at 130 cfm
- No noise level is stated
Replacement Fireplace Fan Blower Kit
A replacement fireplace blower kit for Heatilator fireplaces, with a magnetic thermostat, foam pads, and variable speed control.
Pros
- Magnetically mounted thermostat switches the fan automatically at 120° / 90°
- Two double stick foam pads help stop fan noise reaching the fireplace wall
- Rheostat variable speed control with a low first setting
- Lowest power draw in this comparison at 31 watts
Cons
- No warranty term is stated
- Lowest airflow in this comparison at 80 cfm
- Spec table lists included components as cord only, while bullets list a full kit
- Smallest blower body here, which limits the fireplaces it replaces
Compare the picks
| Blower | Airflow | Power | Dimensions | Thermostat | Speed control |
|---|---|---|---|---|---|
| Criditpid GA3750 Kit | 160 cfm | 52 watts | 15.0 x 4.0 x 3.5 in | Not stated | Rheostat variable speed |
| Criditpid GA3650 Fan | 160 cfm | 52 watts | 15.0 x 4.0 x 3.5 in | Not stated | Not stated |
| Adviace FK24 Kit | 130 cfm | 35 watts | 14.9 x 4.15 x 3.25 in | Magnetic, 120° / 90° | Rheostat variable speed |
| Adviace GFK21 Kit | 80 cfm | 31 watts | 7.5 x 3.73 x 3.23 in | Magnetic, 120° / 90° | Rheostat variable speed |
Specifications are manufacturer rated, collected 28 October 2026.
How we scored them
Each blower is scored on performance, build, value, safety and warranty, using only what the listing publishes. For blower kits, safety means stated Class H insulation rated to 392°F and other stated safety features. None of the four listings state a warranty. The weights are on our How We Pick page.
| Product | Woodlot Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Criditpid GA3750 Kit | 9.6 | 30 | 21 | 21 | 7 | 0 |
| Criditpid GA3650 Fan | 9.6 | 29 | 20 | 20 | 7 | 0 |
| Adviace FK24 Kit | 9.5 | 28 | 20 | 20 | 7 | 0 |
| Adviace GFK21 Kit | 9.5 | 27 | 20 | 19 | 7 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
Buying guide: the best fireplace blower fan under 80
Airflow and power draw
Airflow is the headline figure for a blower kit, and these four span a wide range. The two Criditpid kits each list airflow of 160 cfm at 52 watts, while the Adviace FK24 lists 130 cfm at 35 watts and the Adviace GFK21 lists 80 cfm at 31 watts. All four motors run at 3000 rpm on 120 volts at 60 Hz. A higher airflow figure moves more air, but it also draws more power, so match the kit to the size of the room and the fireplace it serves rather than chasing the biggest number alone.
Fit and size
Fit decides whether a kit works at all, so compare the listed dimensions with the fireplace opening before ordering, as both Criditpid listings and the Adviace FK24 listing advise. The Criditpid kits measure 15.0 inches by 4.0 inches by 3.5 inches. The Adviace FK24 measures 14.9 inches by 4.15 inches by 3.25 inches with its bracket, and 12.5 inches by 3.73 inches by 3.23 inches without it. The Adviace GFK21 is the smallest at 7.5 inches by 3.73 inches by 3.23 inches. Each listing also names the fireplace models it replaces, from Heatilator and Majestic to Desa, FMI, Vanguard and Vexar, so check the model list against the fireplace in the house.
| Kit | Airflow | Power | Thermostat | Speed control |
|---|---|---|---|---|
| Criditpid GA3750 Kit | 160 cfm | 52 watts | Not stated | Rheostat variable speed |
| Criditpid GA3650 Fan | 160 cfm | 52 watts | Not stated | Not stated |
| Adviace FK24 Kit | 130 cfm | 35 watts | Magnetic, 120° / 90° | Rheostat variable speed |
| Adviace GFK21 Kit | 80 cfm | 31 watts | Magnetic, 120° / 90° | Rheostat variable speed |
Thermostat and speed control
Both Adviace kits include a magnetically mounted thermostat that closes at approximately 120°F and opens at approximately 90°F, so the blower turns on and off automatically with the fire. The Adviace listings also include a rheostat variable speed control, so the fan speed can be set by rotating the control knob. The Criditpid GA3750 kit includes a rheostat variable speed control too, while the Criditpid GA3650 fan listing does not name a thermostat or a speed control. For a fireplace that runs through the evening, automatic on and off plus a speed control mean less fiddling at the hearth.
What comes in the box
Kit contents differ more than the airflow figures suggest. The Adviace GFK21 kit includes the blower, two double stick foam pads, a magnetically mounted thermostat, a rheostat variable speed control, a 3-prong power cord of 83 inches, a pre-wired harness, and installation instructions. The Adviace FK24 kit adds a galvanized mounting bracket, a wiring harness, and a 3-prong power cord. The Criditpid GA3750 kit includes the blower, a 3-prong power cord, a rheostat variable speed control, a wiring harness, Velcro mounting strips, and installation instructions. The Criditpid GA3650 fan includes the blower, double-side tape, noise reduction padding, and installation instructions.
Wear eye protection and gloves for cutting, splitting and handling, follow every tool's manual, install stoves to code, and have the chimney inspected and cleaned every year. See EPA Burn Wise and NFPA heating safety. Read our Safety Disclaimer.
Around the Woodpile
- Compare the listed dimensions with the fireplace clearance and dimensions before ordering, as the listings advise.
- Foam pads and noise reduction padding help keep fan noise from reaching the fireplace walls.
- A magnetic thermostat turns the blower on at approximately 120°F and off at approximately 90°F, so the fan runs only while the fire is hot.
- Use the rheostat variable speed control to set the fan speed for the room, rather than running full speed all evening.
- Keep the 3-prong power cord clear of the hot fireplace surfaces and check it when the stove is cold.
Frequently Asked Questions
Which blower kit moves the most air?
The two Criditpid kits each list airflow of 160 cfm, ahead of the Adviace FK24 at 130 cfm and the Adviace GFK21 at 80 cfm. All four motors run at 3000 rpm.
Do these blower kits turn on and off by themselves?
The two Adviace kits include a magnetically mounted thermostat that closes at approximately 120°F and opens at approximately 90°F, so they switch automatically. The Criditpid listings do not name a thermostat.
Will a replacement blower fit my fireplace?
Each listing names the fireplace models it replaces, so check the model list against the fireplace in the house and compare the listed dimensions with the available clearance before ordering.
How noisy are these blower fans?
The Adviace GFK21 listing states a noise level of 50 db, and the Criditpid GA3750 listing states 35 db. The Adviace FK24 and Criditpid GA3650 listings do not state a noise level.
What is Class H insulation on a blower?
The listings for all four kits state Class H insulation rated to 392°F for the blower motor, which is the heat rating the maker publishes for the motor insulation.
Related guides
See the wood stoves hub and stove accessories, and the best fireplace insert for a cabin for insert heating. Once the blower is moving warm air, a wood stove thermometer for a pellet stove helps watch stove temperatures. Thinking bigger? See our best barrel stove. Rounding out the hearth? Read best fireplace tool set under 80.
