Harvia WHP1000M 1000mm chimney extension with flashing — black steel for wood-burning sauna heaters
Harvia

Harvia Black Chimney Extension 1000 mm WHP1000M

4.5 6 online reviews
Sale price$651.00 Regular price$723.33
Free shipping
Typically ships in 2–3 business days
Questions before you buy? Talk to a specialist: (513) 650-6959
Monday–Saturday, 9am–5pm PT
View our refund policy
Shop with Confidence
  • Authorized Retailer of Harvia
  • Manufacturer Warranty Included
  • Secure Checkout
  • U.S.-Based Customer Support
  • Free Shipping to the Contiguous US
  • In-stock orders typically ship within 2–3 days

The Harvia WHP1000M is a black powder-coated steel chimney extension that adds 1000 mm of height to compatible Harvia chimney systems used with wood-burning sauna stoves.

Designed to accommodate thermal expansion and contraction during operation, the extension supports vertical indoor or outdoor chimney installations. Confirm compatibility with your stove and chimney system before ordering.

Specifications

Model and SKU: WHP1000M.

Material and finish: Black powder-coated steel.

Height: 39.3 inches (1000 mm).

Diameter: 8.6 inches (220 mm).

Installation: Vertical, indoor or outdoor.

Origin: Manufactured in Finland.

What's Included

Contents: Harvia WHP1000M black steel chimney extension.

Compatibility and Installation

Application: Extension component for compatible Harvia chimney systems used with wood-burning sauna stoves.

Requirements: Confirm the required chimney layout and compatibility before purchase. Follow the manufacturer's instructions and local building requirements.

Warranty

Coverage: Includes a 2-year limited manufacturer warranty, subject to the manufacturer's terms. Contact Prime Regeneration for warranty assistance.

Frequently Asked Questions

How much height does it add?

The extension adds a listed 1000 mm.

What is the listed diameter?

8.6 inches (220 mm).

What finish does it have?

Black powder-coated steel.

Can it be installed outdoors?

Yes. It supports compatible vertical indoor or outdoor installations.

Will it fit any chimney?

No universal fit is stated. Confirm compatibility with your specific Harvia chimney system and stove.
Harvia WHP1000M 1000mm chimney extension with flashing — black steel for wood-burning sauna heaters
Harvia Black Chimney Extension 1000 mm WHP1000M Sale price$651.00 Regular price$723.33

4.5

6 online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

Harvia Black Chimney Extension 1000 mm WHP1000M Review Summary

4.5

6 online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

What people like

Customers appreciate the high-quality construction and the sleek aesthetic that seamlessly matches existing wood-burning setups. The installation process is frequently described as straightforward, allowing for a secure and stable fit that enhances overall safety and draft efficiency. Users value the durability of the materials used, noting that the component provides a reliable long-term solution for chimney height requirements while maintaining a clean, professional appearance.

Pros

  • Durable Construction: High-quality black steel ensures longevity and excellent heat resistance during intense use.
  • Easy Installation: The locking mechanism allows for a quick and secure connection to existing flue kits without the need for complex tools.
  • Perfect Aesthetic: The sleek black finish provides a cohesive and stylish look when paired with compatible heaters and chimney kits.
  • Enhanced Safety: Increasing the chimney height improves smoke ventilation and helps maintain proper clearance through the roofline.

Cons

  • High Price Point: Some users find the cost to be relatively high for a single extension piece compared to generic alternatives.
  • Compatibility Issues: The item is specifically designed for proprietary brand kits and may not fit other standard stove pipes without specialized adapters.
  • Fragile Coating: The black painted finish can be prone to scratching or chipping if not handled with extreme care during the assembly process.
  • Bulky Shipping: Due to the length and weight of the steel, shipping costs can be significant and packaging may occasionally arrive damaged.
OneReview

Powered by OneReview

The products available at Prime Regeneration are intended for general wellness, relaxation, and personal recovery use only. Unless a product page specifically identifies an FDA-cleared intended use, these products are not medical devices and are not intended to diagnose, treat, cure, or prevent any disease or medical condition. FDA clearance is product- and indication-specific and differs from FDA approval or establishment registration.

Any wellness-related information provided on this site is for general informational purposes only and should not be considered medical advice. Individual experiences may vary. Please consult a qualified healthcare professional before using any wellness product if you have health concerns, are pregnant, have a pre-existing condition, or are taking medication.

Prime Regeneration does not make medical, therapeutic, or disease-related claims regarding any product sold on this site. Products should not be used as a substitute for professional medical advice, diagnosis, or treatment.