---
product_id: 24429704
title: "HMI Hoyme Manufacturing Inc. Motorized Fresh Air Damper for Combustion - 8\" SF1 for One Heating Appliance"
brand: "hoyme"
price: "€ 716.11"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/24429704-hmi-hoyme-manufacturing-inc-motorized-fresh-air-damper-for-combustion
store_origin: FI
region: Finland
---

# 8" Diameter 24V Power 5W Efficiency HMI Hoyme Manufacturing Inc. Motorized Fresh Air Damper for Combustion - 8" SF1 for One Heating Appliance

**Brand:** hoyme
**Price:** € 716.11
**Availability:** ✅ In Stock

## Summary

> Breathe Easy, Live Smart! 🌟

## Quick Answers

- **What is this?** HMI Hoyme Manufacturing Inc. Motorized Fresh Air Damper for Combustion - 8" SF1 for One Heating Appliance by hoyme
- **How much does it cost?** € 716.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/24429704-hmi-hoyme-manufacturing-inc-motorized-fresh-air-damper-for-combustion)

## Best For

- hoyme enthusiasts

## Why This Product

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

## Key Features

- • **💡 Energy Saver:** Designed to save energy while enhancing comfort.
- • **🔒 Safety First:** Interlocks with safety control systems for peace of mind.
- • **🏗️ Versatile Fit:** Compatible with 4" to 9" insulated air ducts.
- • **🌬️ Fresh Air Flow:** Optimizes fresh air intake for combustion efficiency.
- • **🇺🇸 Trusted Quality:** Proudly patented and code approved since 1984.

## Overview

The HMI Hoyme Manufacturing Inc. Motorized Fresh Air Damper is a cutting-edge solution for controlling fresh air flow in heating appliances. Designed for both residential and commercial HVAC systems, this 8" damper interlocks with safety controls and is compatible with various duct sizes, ensuring optimal performance and energy efficiency.

## Description

The COMBUSTION FRESH AIR DAMPER, Series 'HOM' is motorized and used for the control of fresh air for combustion. It is patented and Code Certified to be field installed and interlocked with a thermostat of a furnace or aquastat of a boiler, using either oil, propane or natural gas. The damper is placed at the terminating end of an insulated fresh air inlet duct beside the furnace. When the thermostat asks for heat, this motorized damper opens to allow fresh air for complete combustion. When the furnace stops, the damper closes to prevent the entry of unnecessary cold air. This results in added comfort with a definite saving of fuel. HMI HOYME dampers and accessories are internationally certified by the Canadian Standards Association (CSA) to include both the United States and Canada. *A Qualified Contractor should be consulting regarding the air supply requirements.*

## Features

- Controls the flow of Fresh Air for Combustion and attaches to the terminating end of an Insulated Air Duct 4" to 9" in increments of 1"
- Proudly Patented and Code Approved since 1984, specifically for American & Canadian Residential and Commercial HVAC Industries
- Interlocks to Safety Control Systems of Gas, Propane or Oil-Fired Appliances using Millivolts DC, 24Vac and/or 120Vac
- Inter-connects with other Inline Fresh Air Control Dampers providing Safety and Comfort while saving energy at the same time
- Use type HOM-'SF1' for one appliance, HOM-'SF2' for two appliances or mount in 'Tandem' for larger sized appliances

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HMI Hoyme Manufacturing Inc. |
| Part Number | HOM-0x11-SF1 |
| Item Weight | 5 pounds |
| Product Dimensions | 9 x 7.5 x 13.5 inches |
| Item model number | HOM-0811-SF1 |
| Voltage | 24 Volts |
| Wattage | 5 watts |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![HMI Hoyme Manufacturing Inc. Motorized Fresh Air Damper for Combustion - 8" SF1 for One Heating Appliance - Image 1](https://m.media-amazon.com/images/I/41IkT03X07L.jpg)
![HMI Hoyme Manufacturing Inc. Motorized Fresh Air Damper for Combustion - 8" SF1 for One Heating Appliance - Image 2](https://m.media-amazon.com/images/I/51Rnj2J8UnL.jpg)

---

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**Shop now:** [https://www.desertcart.fi/products/24429704-hmi-hoyme-manufacturing-inc-motorized-fresh-air-damper-for-combustion](https://www.desertcart.fi/products/24429704-hmi-hoyme-manufacturing-inc-motorized-fresh-air-damper-for-combustion)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-18*