Harvia 7.9" Smoke Pipe 4.5" diameter-Stainless Steel | WZ11520
Harvia 7.9" Smoke Pipe 4.5" diameter-Stainless Steel | WZ11520
✓ Authorized Harvia Dealer since 2023
Harvia 7.9" Smoke Pipe 4.5" diameter Stainless Steel: Factory Flue Component For Harvia Wood Stoves
The Harvia 7.9" Smoke Pipe 4.5" diameter Stainless Steel is a 7.9-inch short stainless pipe section used for fine stack adjustments. Harvia stoves use a 4.5-inch (115mm) flue system; mixing generic flue components or wrong-size adapters is one of the fastest routes to a failed inspection on a new install.
Harvia factory flue components are matched to stove outlet diameter and the rest of the chimney stack. The WHP, WZ, and WL series are all designed to interconnect without adapters. That’s the point. Before ordering, verify the exact SKU you need against your ceiling height and existing flue.
Why Buy From RecovAthlete
We’re an authorized Harvia dealer. Flue sizing and stack length are install-critical. Too short and the draft suffers. Black pipe where stainless belongs, and the stack corrodes early. Harvia’s stack system has specific positions for each component.
Call 866-861-6317 with your ceiling height, stove model, and existing chimney (if any). We’ll map the correct components before your order ships.
“The flue is where most wood-burning sauna installs fail inspection. Getting the Harvia-specified components in the right positions avoids the rework: black pipe inside the hot zone, stainless outside, the right stack length.”
Best For
- Harvia Harvia stove installs needing a short section to complete the stack installs
- New wood-burning sauna builds needing complete factory flue components
- Replacement flue sections where an existing component has corroded or warped
Not Ideal For
- Non-Harvia stoves, because this is sized to Harvia’s 4.5-inch standard
- Installs where flue diameter differs from Harvia’s 4.5-inch standard
- Attempts to mix generic and Harvia factory components, because cross-compatibility isn’t guaranteed
Who Buys This
- Homeowners building a new wood-burning Harvia sauna install
- Sauna builders specifying factory flue components at quote stage
- Cabin and lake-house owners replacing a corroded section of existing flue
- Inspected residential builds where the AHJ requires factory-matched components
What You’re Actually Getting
- Harvia 4.5-inch / 115mm flue standard: matches the outlet diameter of all current-production Harvia wood stoves
- Factory stack compatibility: connects directly to other Harvia WHP, WZ, and WL flue components without adapters
- Smoke pipe, 7.9" short section, stainless construction: material selected for the intended position in the flue stack
- Passes typical inspection: factory-matched components are the standard answer for residential code compliance
- Preserves stove warranty: using Harvia’s own flue components keeps the stove under its factory warranty
IMPORTANT: Compatibility
This is the shortest standard Harvia pipe section, used when stack geometry needs a 7.9-inch trim piece, typically at a transition or adapter joint.
Call 866-861-6317 to confirm placement.
Specifications
| Model | WZ11520 |
| Type | Smoke pipe, 7.9" short section, stainless |
| Flue Diameter | 4.5 inches (115 mm) |
| Length | 7.9 inches |
| Diameter | 4.5 inches (115 mm) |
| Construction | Stainless steel |
| Manufacturer Warranty | Harvia factory warranty |
Shipping & Delivery
Chimney components ship parcel or LTL from US distributor. Standard lead time 3-10 business days. Before ordering, confirm your full chimney stack plan against your ceiling height. Call 866-861-6317 if you want us to verify your stack configuration before you commit.
The Investment Frame
The chimney stack is usually the lowest-dollar portion of a sauna install, and the single most common inspection fail. Factory Harvia components remove the guesswork and keep the stove’s warranty valid, a worthwhile trade against pipe shop substitutes.
Frequently Asked Questions
Will this fit my non-Harvia stove?
Harvia flue components are sized to Harvia’s 4.5-inch (115mm) stove outlet. Fitting to non-Harvia stoves with different outlet sizes typically requires adapters, which we don’t recommend.
Black or stainless: which do I need where?
Black pipe is typical inside the sauna room, close to the stove. Stainless is standard for exterior and above-ceiling portions of the stack. Your installation guide and local code specify exactly.
How do I know what total stack length I need?
Measure from the stove outlet to the ceiling penetration, then from ceiling to the roofline, then from roofline to above-roof finish. Call 866-861-6317 with these three measurements and we’ll map your exact components.
Does the flue size affect draft?
Yes. The 4.5-inch Harvia spec is engineered for the stove’s combustion rate. Oversizing or undersizing can cause poor draft or excess heat loss.
Also Consider
- Harvia 1.64ft Smoke Pipe Stainless: Longer 1.64ft pipe
- Harvia Pipe Adapter WZ115155: Pipe adapter
- Harvia Chimney Kit WHP1500: Complete chimney kit