Spare Parts Planning
Sauna spare parts reorder forecast guide for distributors
A reorder forecast helps distributors keep the right sauna parts available without filling the warehouse with slow-moving items. The forecast should start from model mix, installed rooms, service history, and lead time rather than a generic parts list.
Forecast by room family and risk.
The same part can be critical in one program and unnecessary in another. A dealer with repeated outdoor cabin installations may need door seals, roof trim, and heater accessories. A commercial spa project may need high-use hinges, bench boards, sensors, and lighting covers.
Use this guide to decide which parts deserve minimum stock, which should be order-only, and which should be reviewed with the factory before committing budget.
1. Classify parts before forecasting
Start with part behavior. Some parts are small, low-cost, and useful across many models. Others are expensive, model-specific, or only needed after a confirmed service case.
| Class | Examples | Stock method | Risk if wrong |
|---|---|---|---|
| Fast-moving small parts | Screws, labels, small seals, handle hardware | Keep minimum stock by dealer program | Small missing items delay installation |
| Model-specific parts | Bench boards, glass seals, roof trim, exterior boards | Stock only after model mix repeats | Wrong finish or size becomes unusable |
| Electrical parts | Controller, sensor, transformer, LED parts | Stock by voltage and heater/control brand | Wrong market standard creates support risk |
| Commercial wear parts | High-use hinges, handles, bench supports, lamp covers | Forecast from installed commercial rooms | Downtime hurts hotel or gym operation |
| Optional accessories | Bucket, ladle, timer, thermometer, signs | Keep light stock for buyer handover | Overstock ties cash without solving service issues |
| Order-only parts | Large custom glass, custom wall panels, uncommon trim | Confirm against drawing before order | High risk of wrong-version shipment |
2. Forecast fields to keep in the spreadsheet
A useful forecast file should be readable by sales, warehouse, and service teams. Avoid internal shorthand that only one person understands.
| Field | Purpose | Example | Review frequency |
|---|---|---|---|
| Model family | Connects part to sauna type | Barrel, cabin, cube, commercial, infrared | Every reorder |
| Part group | Keeps warehouse categories clear | Door hardware, heater, lighting, roof, bench | Monthly |
| Compatibility note | Prevents wrong-version picking | 8 mm glass, right-opening, red cedar | Every order |
| Installed base | Shows the number of rooms needing support | 82 outdoor cabins installed | Quarterly |
| Usage pattern | Separates home, dealer, hotel, and gym needs | Commercial high-use | Quarterly |
| Lead time | Sets reorder trigger | Factory plus transit plus customs time | Every reorder |
| Minimum stock | Defines when to reorder | 5 hinge sets, 10 seal packs | Monthly |
| Service cases | Connects stock to real demand | 3 claims in 90 days | Monthly |
3. Reorder trigger bands
The values below are planning bands. A distributor should tune them after the first few shipments and service records.
| Part type | Suggested trigger | Keep stock when | Factory check before reorder |
|---|---|---|---|
| Door hardware | When stock falls below two service cycles | Dealer installs repeated models | Confirm door swing and glass thickness |
| Seals and gaskets | When less than one month of service use remains | Outdoor rooms or glass-front models repeat | Confirm profile and glass thickness |
| Lighting parts | When installed rooms exceed stable threshold | Same voltage and lighting design repeat | Confirm transformer and wet-area rating |
| Controller and sensor | Only after heater/control package is fixed | Commercial rooms need low downtime | Confirm voltage, brand, and model |
| Bench parts | After wear pattern is proven | Commercial projects or repeated wood species | Confirm wood species, tone, and dimensions |
| Roof and exterior trim | Before peak outdoor installation season | Outdoor cabins and barrel rooms repeat | Confirm roof color, climate, and packing |
4. Monthly forecast review
Treat the forecast as a living file. Monthly review is enough for most distributors; commercial projects may need a separate project file.
| Review step | Question | Data source | Decision |
|---|---|---|---|
| Check installed base | Which models were shipped, installed, or displayed? | Sales and delivery records | Update model count |
| Review service cases | Which parts were requested and why? | Warranty and support notes | Separate product, installation, and wear issues |
| Compare lead time | Has factory or shipping lead time changed? | Production and logistics notes | Adjust reorder point |
| Check substitutions | Did any model or finish change? | Order file and material selection | Stop stocking old-version parts |
| Review slow movers | Which parts have not moved? | Warehouse inventory | Move to order-only if needed |
| Update next order | Which parts should ship with the next container? | Forecast sheet | Attach model and carton labels |
How different buyers should use this file
The same spare parts planning resource should not be used in the same way by every buyer. An importer may use it to compare factory readiness, a dealer may use it to train staff, and a project owner may use it to keep contractors and operators aligned.
The best version is short enough for daily use but detailed enough to support a future service question. Keep the public article as the shared reference, then keep the editable sheet inside the buyer file with photos, model codes, dates, and responsibility names.
| Buyer role | How to use the file | Fields to keep visible | Best handoff moment |
|---|---|---|---|
| Importer | Use it to compare suppliers and confirm whether the factory can support repeat orders after shipment. | Model code, material, heater standard, packing, spare parts, document request | Before confirming container mix |
| Distributor | Turn the checklist into a dealer-facing operating sheet and attach it to each model family. | SKU, installed base, service cases, minimum stock, training owner | Before dealer launch or showroom opening |
| Dealer | Use it with installers and sales staff so the same model is described and serviced consistently. | Room family, installation notes, accessory list, support contact, photos | Before first customer handover |
| Hotel or spa | Keep it as a facility record for daily staff, maintenance staff, and management review. | Opening log, cleaning method, heater baseline, issue history, replacement notes | Before guests use the room |
| Builder or contractor | Use it to check site readiness, clearance, power route, and finished installation evidence. | Site measurements, base, access path, electrical signoff, installed photos | Before the sauna arrives on site |
| Private-label buyer | Attach brand-specific labels, manuals, carton marks, and accessory decisions without changing the technical base. | Logo, manual language, label version, spare kit, package mark | Before artwork and packing approval |
Evidence to keep with the order file
A strong B2B resource page should lead to a better buyer file, not just a longer article. The evidence below makes later service, reorder, and warranty conversations much easier because the team can see what was approved and what changed.
For CSauna projects, these fields also help the design and production teams keep wood, heater, glass, roof, accessory, and packing decisions together. When a question appears months later, the answer should come from the file rather than from memory.
| Evidence item | What it proves | Who should save it | When to update |
|---|---|---|---|
| Product model page | The visual model family and public reference used during selection. | Buyer and sales team | When a model is shortlisted |
| Approved drawing | The actual size, door, glass, bench, heater, ventilation, and layout decision. | Factory design team and buyer | Whenever a dimension or layout changes |
| Material confirmation | Wood species, surface tone, roof color, glass direction, and hardware finish. | Buyer and design team | Before visible material is cut |
| Electrical note | Voltage, phase, heater power, controller position, and local installation scope. | Importer and electrician | Before heater package is locked |
| Packing list | Carton sequence, accessory carton, spare parts, labels, manuals, and loading notes. | Warehouse and buyer | Before shipment |
| Installed photos | Actual site condition after handover, including heater, door, bench, and exterior details. | Dealer, installer, or facility team | At installation and after service work |
Good stock decisions
- Tie parts to model codes
- Record voltage and market
- Keep photos of replaced parts
- Separate dealer showroom and commercial project demand
- Review slow movers before ordering again
Bad forecast signals
- One spare list for every sauna
- No model code in warehouse file
- No lead-time field
- Electrical parts not separated by market
- No record of why parts were used
Model references used in this guide
For outdoor and dealer programs, compare the checklist against model references such as CSA-01 red cedar barrel sauna, CSA-02 outdoor cube cedar sauna, and CSA-04 cedar outdoor sauna room.
Need an editable reorder forecast sheet?
Send your model families, expected order rhythm, and whether the stock supports dealers, commercial projects, or sample rooms. We can prepare a practical spreadsheet structure for review.