Extend your Harvia wood-stove chimney with the WHP1000 + WHP500M Chimney Extension Package. This stainless-steel, double-wall insulated set adds 1.5 meters of vertical chimney and locks securely into place—ideal for detached saunas or high-ceiling installs that require extra stack height for proper draft and compliance.
Key Features
- Modular extensions: 1000 mm + 500 mm stainless steel sections
- Double-wall insulated: Mineral wool core for high-temp safety and performance
- Secure joints: Groove-and-band connections resist thermal movement
- Certified & tested: CE-marked, soot-fire resistant, and freeze-thaw tested
- Vertical install only: Stackable; self-supporting outdoors up to 2 m
- Finnish quality: Designed, engineered, and made in Finland
- Warranty: 2-Year Consumer Warranty
Required Components
The following items are required for proper installation and safe operation (sold separately):
- Base chimney kit — e.g., Harvia WHP1500 or WHP1500M
- Roof flashing / rain protection matched to roof pitch and material
- Support brackets / guy wires if the stack is exposed or exceeds self-support limits
What’s Included
- 1 × 1000 mm stainless steel chimney extension
- 1 × 500 mm stainless steel chimney extension
- 2 × locking bands for secure connections
- Installation & Operation Instructions
Specifications
| Models | WHP1000 + WHP500M (Extension Sections) |
| Total Extension Length | 1500 mm (59 in) |
| Material / Finish | Stainless steel, double-wall with mineral wool insulation |
| Self-Supporting Height (Outdoors) | Up to 2 m above last support |
| Max Unsupported Height (Indoors) | Up to 3 m total (supports required above) |
| Wind Load (Max Support Gap) | Supports ≤ 3 m (9.8 ft) apart; ≤ 2 m (6.5 ft) above last support |
| Diameter | 220 mm (8.66 in) |
| Certification / Origin | CE-marked • Finland |
Shipping & Delivery
Do you ship to the USA? Yes, we provide shipping to the contiguous United States. Shipping costs and estimated delivery times are calculated at checkout based on the weight and dimensions of your order.
Are there import duties or taxes? Transparency Disclosure: Because your order ships from the DE, it may be subject to US import duties or customs fees. These fees are the responsibility of us.
How long is the "Handling Time"? Our standard handling time is 1–2 business days. This is the time it takes to process your order before it leaves our facility.
What is the "Transit Time"? Transit time to the USA typically takes 3–5 business days via our international carriers. You will receive a tracking link as soon as your order is dispatched.
Returns & Refunds
What is your return window? In alignment with Google’s best practices, we offer a 30-day return policy. You have 30 days from the date of delivery to request a return.
How do I start a return? To initiate a return, please email Contact@yourspapool.com with your order number. We will provide you with the appropriate return shipping address.
What condition must the items be in? Items must be in their original packaging, unused, and in the same condition that you received them.
When will I receive my refund? Once your return is received and inspected, we will process your refund within 10 business days. The credit will automatically be applied to your original method of payment.
