Harvia WHP270SP is the stainless smoke damper for the WHP steel chimney (RST = stainless). Harvia’s WHP1500 support page is explicit: the chimney package does not include a damper; this is the matching part.
How it is used
The installer fits it in the Harvia steel chimney so you can set draft. It does not replace the chimney and it does not change listings. Black chimney uses WHP270SPM, not this stainless damper.
What’s included
- WHP270SP damper for Harvia steel chimney, stainless / RST
Specs
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Brand: Harvia (Finland)
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Model: WHP270SP
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Finish: Stainless (RST)
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Fits: Harvia WHP steel chimney
Downloads
Code, UL, and who decides the flue
A licensed chimney installer and the authority having jurisdiction decide the flue for your building. We sell the manufacturer’s European steel chimney system named on this page. Harvia prints CE on the pages we cite. Those pages do not print a UL listing. We will not invent one. This is not a US 6-inch Class A kit.
Accessory damper for Harvia’s CE WHP chimney. Not a flue by itself. Not UL.
Email hello@selfcaresaunas.com with roof type (flat vs pitched), ceiling height, and whether the stove loads from inside or through the wall — before you order pipe.
FAQ
Is this a US 6-inch Class A chimney?
No. Harvia’s WHP steel chimney is a European modular flue: inner smoke pipe 115 mm (about 4.53"), outer casing 220 mm (about 8.66"). Harvia.com prints CE. We do not invent UL. Your installer and local code decide whether this system is legal on your building.
Indoor house chimney?
Harvia’s own support page for WHP1500: suitable only for standalone outdoor sauna buildings — not as the chimney for a fireplace inside a house or vacation home. If the sauna is inside a dwelling, stop and email hello@selfcaresaunas.com.
Does the kit include a damper?
No. Harvia names WHP270SP (stainless) and WHP270SPM (black) as the matching dampers, sold separately.
Will this damper make the kit UL listed?
No. It is Harvia’s WHP chimney damper. Code still sits with the installer.
Questions? Email hello@selfcaresaunas.com or email hello@selfcaresaunas.com.
