---
product_id: 148369867
title: "ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408)"
brand: "suncourt"
price: "€ 165.30"
currency: EUR
in_stock: true
reviews_count: 13
category: "Suncourt"
url: https://www.desertcart.hr/products/148369867-thruwall-room-to-room-transfer-fan-quiet-through-wall-vent
store_origin: HR
region: Croatia
---

# Energy efficient 39W power Ultra-quiet operation < desktop PC noise 130 CFM airflow ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408)

**Brand:** suncourt
**Price:** € 165.30
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your air game — because comfort is the new productivity!

## Quick Answers

- **What is this?** ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408) by suncourt
- **How much does it cost?** € 165.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/148369867-thruwall-room-to-room-transfer-fan-quiet-through-wall-vent)

## Best For

- suncourt enthusiasts

## Why This Product

- Trusted suncourt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Installation:** No hardwiring needed—installs easily in 3.75"-6.5" walls with a 10’ power cord for instant comfort.
- • **Whisper-Quiet Performance:** Engineered in the USA for noise levels lower than a desktop computer, perfect for focused workspaces.
- • **Customizable Airflow Control:** Two-speed motor plus airflow adapter plates let you tailor ventilation to your exact needs.
- • **Seamless Temperature Balance:** Quietly equalizes room temps from 100-275 sq. ft. with powerful 130 CFM airflow.
- • **Certified Durability & Safety:** MET Labs certified, UL 507 & CSA standards compliant, backed by a 1-year warranty for peace of mind.

## Overview

The Suncourt ThruWall Room-to-Room Transfer Fan (TW408) is a sleek, energy-efficient wall-mounted fan designed to improve air circulation between rooms sized 100-275 sq. ft. It features a powerful 130 CFM airflow, ultra-quiet 2-speed motor, and easy plug-in installation without hardwiring. Engineered and assembled in the USA, it meets rigorous safety certifications and includes airflow adapter plates for customizable ventilation, making it ideal for modern homes and offices seeking balanced, quiet climate control.

## Description

Suncourt has been improving indoor air quality and comfort since 1988. Family-owned and based in Durant, Iowa, Suncourt's smart, energy-saving airflow solutions are built to last and easy to install. All products are engineered and assembled in the USA and exceed industry standards for safety, reliability, and performance. Suncourt has been improving indoor air quality and comfort since 1988. Family-owned and based in Durant, Iowa, Suncourt's smart, energy-saving airflow solutions are built to last and easy to install. All products are engineered and assembled in the USA and exceed industry standards for safety, reliability, and performance. Shop Register Booster Fans Visit the Store Shop Register Booster Fans Visit the Store Shop HVAC Fans & Dampers Visit the Store Shop HVAC Fans & Dampers What types of airflow control solutions do you offer? Our wide range of products include dryer booster kits, radon mitigation kits, inline HVAC fans, vent/register booster fans, room-to-room fans, motorized dampers, and more. Are Suncourt products safe? Absolutely—every product meets or exceed rigorous industry standards for safety, reliability, and long-term use. Are Suncourt products easy to install? Yes—Suncourt designs its airflow solutions with simple installation in mind. Ideal for both DIYers and professionals. What types of airflow control solutions do you offer? Our wide range of products include dryer booster kits, radon mitigation kits, inline HVAC fans, vent/register booster fans, room-to-room fans, motorized dampers, and more. Are Suncourt products safe? Absolutely—every product meets or exceed rigorous industry standards for safety, reliability, and long-term use. Are Suncourt products easy to install? Yes—Suncourt designs its airflow solutions with simple installation in mind. Ideal for both DIYers and professionals.

Review: Works great at the end of a small run! - Purchased this fan to get warm air from a hallway/main living area into a bedroom on the northeast side of our house. That room has two exterior walls and is always cold in the winter. Our house is heated with hot water baseboards, and this room seems to be on the end of the loop in addition to being on the coldest side of the house. Because framing around the door prohibited me from installing this fan over the door (and there wasn't any other wall available to go directly through), I had to install 8" rigid ducting that went from the hallway, through a cabinet in the adjacent bathroom, and into the bedroom. There's about 36" of ducting total. All connections were made using sheet metal screws and foil backed tape to ensure no warm air leaks into walls - which could lead to condensation and mold/mildew. According to the size/performance chart in the instructions, this fan is for is almost too big for the room (about 100sf). So I use the fan on low and left one small cap and one large cap on, as the directions indicated. I think having additional ducting actually works to my advantage, since the fan's ability to move air is somewhat diminished by having to 'pull' air through that duct. I don't have a traditional install to compare this to, but I will say that the fan is working fantastically for my bedroom. Warm air enters the top of the room and pushes the cold air back into the living area through the gap between the bottom of the door and the floor. The fan is plugged into a Lux Win100 thermostat so it turns on only when the thermostat calls for heat. The fan noise is very low, in my opinion. Just gentle white noise. Dings - - Installation instructions. The instructions make it seem like utmost precision is required when cutting holes, but that's not really the case. I wouldn't advise anyone to be purposefully sloppy, but a little a little slop is ok. - More importantly, I was not impressed by the way the inlet cover is supposed to mate to the flanged sheet metal sleeve. It looked like the flange was supposed to mate with the plastic housing, but the sizes don't match. So you're left just kind of 'making it work'. That's not the end of the world, but some kind of snap fit would work much better. I almost took a star off for that, but it's not a performance issue. All in all, this is a fantastic solution since it works great and it's way cheaper than buying and running a space heater.
Review: Works great! HOW TO: Reverse Flow - Works great! Easy install in typical interior drywall structure. Very quiet and moves air from equipment closet well. I modified to reverse the flow, so it blows away from the cord. How i did it: pop off the grill cover with the switch (use narrow flatblade to disengage 3 clips), remove fan blade (it pops off, pull at the hub so you don't break blades), remove two bolts holding motor to bracket, slide out armature (drive shaft), rotate motor frame 180⁰, reinsert armature (long shaft away from grill side, to accept fan), snap on fan blade, snap on grill cover (adjust wires as required to avoid contact with moving parts, ziptie if needed). Do at your own risk (I work with mains power often, but no wiring is needed here)!!! Also, light machine oil on bushings. No clue how/if this will affect longevity.

## Features

- BALANCES TEMPERATURE BETWEEN ROOMS: Designed for rooms that are too hot or too cold, Suncourt ThruWall Room-to-Room Transfer Fans mount to the wall to quietly and efficiently transfer air from one room to another. Perfect for three-season rooms, dorms, hotel suites, assisted living, modular homes, utility rooms, bedrooms, offices, and more.
- EASY INSTALLATION: Install in any 3-3/4” to 6-1/2” thick frame wall using minimal tools. No hardwiring required—simply plug it in with the 10-foot power cord to maintain a comfortable environment in rooms 100-275 square feet.
- ULTRA-QUIET OPERATION: Engineered and assembled in the USA for minimal noise, this through wall fan features a 2-speed motor for customized airflow control. Use the included airflow adapter plates to fine-tune airflow at either speed. The sound level is less than a desktop computer’s dBA.
- ENERGY EFFICIENT: The wall fan distributes conditioned or heated air (from rooms with PTAC units, mini-splits, fireplaces, wood stoves, and window air conditioners) to an adjoining room. Designed with low energy consumption in mind, the room to room fan maximizes airflow while minimizing energy use.
- DURABLE & RELIABLE: Delivering trusted performance since 1988, Suncourt’s ThruWall fans are independently certified by MET Laboratories to meet UL 507 and CSA safety standards and are backed by a 1 year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N6I3930 |
| Air Flow Capacity | 130 Cubic Feet Per Minute |
| Best Sellers Rank | #235,940 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #731 in Household Ventilation Fans |
| Blade Length | 2.5 Inches |
| Blade Material | Plastic |
| Brand | Suncourt |
| Brand Name | Suncourt |
| Collection Name | Home,Office |
| Color | White |
| Control Method | Push Button |
| Controller Type | Switch |
| Customer Reviews | 4.2 out of 5 stars 726 Reviews |
| Electric Fan Design | Blower |
| Electric fan design | Blower |
| Finish Type | Sealed |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 8.5"D x 9.25"W x 9.25"H |
| Item Weight | 4.6 Pounds |
| Main Power Connector Type | NEMA 5-15 |
| Manufacturer | Suncourt |
| Material | Plastic |
| Model Name | TW408 |
| Model Number | TW408 |
| Mounting Type | Wall Mount |
| Number of Blades | 5 |
| Number of Power Levels | 2 |
| Number of Speeds | 2 |
| Part Number | CECOMINOD093088 |
| Power Source | Corded Electric |
| Product Dimensions | 8.5"D x 9.25"W x 9.25"H |
| Recommended Uses For Product | Air Circulation, Home, Indoor, Office |
| Room Type | Bedroom |
| Size | Small |
| Special Features | ThruWall design, compatibility with various systems (PTAC units, mini split systems, fireplaces, wood stoves), two-speed operation with airflow adapter plates |
| Speed | 2 Cubic Feet Per Minute |
| Standby Power Shutoff | Energy Efficient |
| Style | 2 Speed with Adapters |
| Switch Type | Push Button |
| UPC | 066028004086 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Wattage | 39 watts |

## Product Details

- **Brand:** Suncourt
- **Color:** White
- **Electric fan design:** Blower
- **Mounting Type:** Wall Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 8.5"D x 9.25"W x 9.25"H
- **Recommended Uses For Product:** Air Circulation, Home, Indoor, Office
- **Room Type:** Bedroom
- **Style:** 2 Speed with Adapters

## Images

![ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408) - Image 1](https://m.media-amazon.com/images/I/7180C3FHUcL.jpg)
![ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408) - Image 2](https://m.media-amazon.com/images/I/81zvK8tSEBL.jpg)
![ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408) - Image 3](https://m.media-amazon.com/images/I/811LGpjR0kL.jpg)
![ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408) - Image 4](https://m.media-amazon.com/images/I/918dArw9u+L.jpg)
![ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408) - Image 5](https://m.media-amazon.com/images/I/81gMLZmlAIL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Are Suncourt ThruWall fans easy to install?**
A: Yes. The TW108 and TW408 are plug-in models designed for simple DIY installation using standard tools and the included template. The TW208P is a hardwired model.

**Q: 2. How quiet are the room-to-room fans?**
A: All models operate quietly—some as low as 45 dBA—making them ideal for use in bedrooms, offices, and other quiet spaces.

**Q: 4. Which model is best for my space?**
A: TW108: Plug-in, 2-speed, for rooms up to 440 square feet. TW208P: Hardwired, variable speed, for up to 200 square feet. TW408: Plug-in, 2-speed with adapter plates, for rooms up to 275 square feet.

**Q: Are these fans certified and safe to use?**
A: Yes. All Suncourt ThruWall fans are MET-listed and meet rigorous safety standards. They are engineered and assembled in the USA for long-lasting, reliable performance.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great at the end of a small run!
*by L***H on January 31, 2018*

Purchased this fan to get warm air from a hallway/main living area into a bedroom on the northeast side of our house. That room has two exterior walls and is always cold in the winter. Our house is heated with hot water baseboards, and this room seems to be on the end of the loop in addition to being on the coldest side of the house. Because framing around the door prohibited me from installing this fan over the door (and there wasn't any other wall available to go directly through), I had to install 8" rigid ducting that went from the hallway, through a cabinet in the adjacent bathroom, and into the bedroom. There's about 36" of ducting total. All connections were made using sheet metal screws and foil backed tape to ensure no warm air leaks into walls - which could lead to condensation and mold/mildew. According to the size/performance chart in the instructions, this fan is for is almost too big for the room (about 100sf). So I use the fan on low and left one small cap and one large cap on, as the directions indicated. I think having additional ducting actually works to my advantage, since the fan's ability to move air is somewhat diminished by having to 'pull' air through that duct. I don't have a traditional install to compare this to, but I will say that the fan is working fantastically for my bedroom. Warm air enters the top of the room and pushes the cold air back into the living area through the gap between the bottom of the door and the floor. The fan is plugged into a Lux Win100 thermostat so it turns on only when the thermostat calls for heat. The fan noise is very low, in my opinion. Just gentle white noise. Dings - - Installation instructions. The instructions make it seem like utmost precision is required when cutting holes, but that's not really the case. I wouldn't advise anyone to be purposefully sloppy, but a little a little slop is ok. - More importantly, I was not impressed by the way the inlet cover is supposed to mate to the flanged sheet metal sleeve. It looked like the flange was supposed to mate with the plastic housing, but the sizes don't match. So you're left just kind of 'making it work'. That's not the end of the world, but some kind of snap fit would work much better. I almost took a star off for that, but it's not a performance issue. All in all, this is a fantastic solution since it works great and it's way cheaper than buying and running a space heater.

### ⭐⭐⭐⭐⭐ Works great! HOW TO: Reverse Flow
*by B***P on April 13, 2025*

Works great! Easy install in typical interior drywall structure. Very quiet and moves air from equipment closet well. I modified to reverse the flow, so it blows away from the cord. How i did it: pop off the grill cover with the switch (use narrow flatblade to disengage 3 clips), remove fan blade (it pops off, pull at the hub so you don't break blades), remove two bolts holding motor to bracket, slide out armature (drive shaft), rotate motor frame 180⁰, reinsert armature (long shaft away from grill side, to accept fan), snap on fan blade, snap on grill cover (adjust wires as required to avoid contact with moving parts, ziptie if needed). Do at your own risk (I work with mains power often, but no wiring is needed here)!!! Also, light machine oil on bushings. No clue how/if this will affect longevity.

### ⭐⭐⭐⭐ Great Fan
*by A***R on June 9, 2016*

The fan is great, Works great and looks good. You can hear the noise at high speed setting, but not much an issue for us, since we only us it to blow cool ac air into other room at the day, during night we use the low setting. At low speed the noise is still there, but not too loud that you can't sleep. The construction is all metal. so it should last long. Installation is simple, just cut a 8" hole into the wall and screw it in. Just make sure not to cut in between any stud or wiring.

## Frequently Bought Together

- Suncourt ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408)
- EconoHome Adjustable Thermostat - Universal Plugin Heating & Cooling Thermostat - Compatible with Most EconoHome Wall Mount Space Heaters

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-15*