Installing a gas furnace outside is generally not recommended due to several significant challenges and potential risks. While there may be some potential benefits, the drawbacks often outweigh the advantages. Let’s explore the feasibility, pros, and cons of installing a gas furnace outside in detail.
Is it Feasible to Install a Gas Furnace Outside?
Design and Purpose
Gas furnaces are typically designed to be installed indoors, where they can be protected from the elements and ensure safe and efficient operation. Outdoor installation would require significant modifications to the furnace design and additional protective measures.
Local Building Codes
Local building codes and regulations often prohibit or heavily restrict the installation of gas furnaces outdoors due to safety concerns. It is crucial to check local codes before considering such an installation.
What are the Pros of Installing a Gas Furnace Outside?
Space Savings
Installing a furnace outside could potentially free up indoor space, which might be beneficial in certain situations where indoor space is limited.
Noise Reduction
Since the furnace would be located outside, it could reduce noise levels inside the home.
What are the Cons of Installing a Gas Furnace Outside?
Environmental Exposure
Outdoor installation exposes the furnace to weather conditions such as rain, snow, and extreme temperatures, which can lead to premature wear and tear, corrosion, and reduced efficiency.
Safety Concerns
Gas furnaces require proper ventilation and combustion air intake to prevent the buildup of carbon monoxide and other hazardous gases. Outdoor installation increases the risk of inadequate ventilation and safety hazards.
Efficiency and Performance
Outdoor installation can lead to reduced efficiency due to exposure to cold temperatures and moisture. This can result in higher energy consumption and increased maintenance needs.
Maintenance Frequency
Outdoor units require more frequent maintenance to ensure they remain functional and safe. This includes regular checks for damage from weather, pests, and other environmental factors.
Costs
While there might be some initial cost savings from not needing indoor space, the long-term costs associated with outdoor installation, including increased maintenance and potential repairs, can be significant.
Specific Considerations for Outdoor Gas Furnace Installation
Clearances and Insulation
If an outdoor installation is considered, it is essential to ensure proper clearances from flammable materials and to provide adequate insulation to protect the furnace from extreme temperatures. However, this does not mitigate the inherent risks and inefficiencies.
Combustion Air Requirements
Ensuring proper combustion air intake is critical for safe and efficient operation. Outdoor installation complicates this due to varying environmental conditions, which can affect oxygen availability and humidity levels.
Energy Loss
Outdoor units are more susceptible to energy loss due to exposure to cold temperatures, which can reduce the overall efficiency of the furnace. This can lead to higher energy bills and reduced system lifespan.
In conclusion, given the significant challenges and risks associated with installing a gas furnace outside, it is generally not advisable. The potential benefits of space savings and noise reduction are outweighed by the safety concerns, reduced efficiency, and increased maintenance needs.
