Harvia Stainless Steel Chimney Extension: 500mm
Best chimney extension for wood-burning sauna heater safety and performance.
Elevate your sauna experience with the Harvia Stainless Steel Chimney Extension. This 1-meter (39 5/8") extension is crafted from durable, corrosion-resistant stainless steel, ensuring longevity against high heat and outdoor conditions. Its insulated design promotes optimal chimney temperatures, leading to efficient smoke exhaust and a consistent draft essential for wood-burning sauna heaters. Designed for straightforward integration with the Harvia WHP1500 Chimney Kit, it simplifies achieving the necessary chimney height for enhanced safety and peak performance.
$428.00
Owner Satisfaction
4.7
/ 5
Category Rank
3
/ 67
#3 in Sauna Buckets & Ladles
Price vs Category Average
+27%
Above average
MPN
1000
/ WHP
Who it's for
- Sauna owners seeking better airflow and smoke-free heating
- Homeowners prioritizing long-term durability in humid environments
- DIY installers wanting a quick, hassle-free setup
Who should skip it
- Budget-conscious shoppers looking for affordable generic alternatives
- Users with limited structural support for tall chimney stacks
- Owners of non-Harvia chimney systems needing universal parts
Performance breakdown
Build Durability
High-grade stainless steel construction withstands extreme heat and harsh outdoor elements.
Draft Efficiency
Insulated design maintains consistent airflow for optimal wood-burning heater performance.
Installation Simplicity
Seamlessly integrates with existing Harvia kits for a straightforward setup process.
Safety Compliance
Proper chimney height extension significantly reduces fire risks in sauna environments.
Material Longevity
Corrosion-resistant properties ensure the unit remains functional through years of use.
System Compatibility
Engineered specifically for the WHP1500 kit to ensure a perfect fit.
Key Specs
MPN
WHP1000
Compatibility
Harvia WHP1500 Chimney Kit
Part Type
Chimney Extension
Length
1 meter (39.63 inches)
Material
Insulated stainless steel
Shape
Round
Accessory Type
Duct Cover
Height
39.63 inches
Features
- Extends chimney height by 1 meter.
- Durable stainless steel construction.
- Corrosion and heat resistant.
- Insulated for optimal draft.
- Improves sauna ventilation.
- Enhances safety.
- Easy integration with WHP1500 Kit.
What customers say
Overall customer sentiment for the Harvia Stainless Steel Chimney Extension is overwhelmingly positive, reflecting the brand's reputation for excellence in sauna components. Users consistently praise the exceptional build quality, noting the robust gauge and high-grade stainless steel construction, which promises long-term durability and resistance to high heat and corrosion—critical factors for chimney components. A recurring theme is the seamless integration and perfect fit with existing Harvia modular chimney systems. Customers appreciate that the 500mm extension snaps or locks into place effortlessly, making installation a quick and frustration-free process, even for DIY enthusiasts. This ease of use significantly boosts satisfaction. While the price point is acknowledged as being higher than generic alternatives, the consensus is that the premium cost is justified by the guaranteed compatibility, superior material standards, and the peace of mind that comes with using genuine Harvia parts designed specifically for their heaters. The primary driver of high satisfaction is reliability; users trust that this extension maintains the safety and efficiency of their sauna ventilation system without fail. Minor critiques sometimes revolve around the necessity of purchasing specific Harvia clamps or seals separately, but these are generally seen as minor logistical hurdles rather than product flaws. The sentiment strongly indicates that for those invested in a Harvia system, this extension is the definitive, high-quality choice that delivers exactly as promised.
Know before you buy
This extension is specifically engineered for seamless integration with the Harvia WHP1500 Chimney Kit. We do not recommend using it with other systems, as the locking mechanisms and insulation diameters may not align correctly.
The insulation helps maintain high internal flue temperatures, which is critical for creating a consistent draft. This prevents creosote buildup and ensures your wood-burning heater operates efficiently.
Yes, the design allows for stacking to achieve the necessary height for your specific installation. However, always ensure the total chimney height complies with local building codes and the manufacturer's safety guidelines for your specific heater model.
While the stainless steel is highly corrosion-resistant, it is best practice to wipe it down occasionally to remove soot or environmental debris. This will help maintain its appearance and structural integrity over years of exposure to outdoor elements.
The extension is designed to lock directly into the existing Harvia WHP1500 system. It is intended to be a straightforward addition, but you should verify that you have the necessary support brackets or roof flashing required by your specific chimney configuration.
Still have a question?
Ask Hayley anything about this product before you decide.