A steam shower is a popular spa-like upgrade in Calgary ensuite renovations — it needs the right waterproofing, ventilation and a steam generator, and integrates best when planned into the bathroom design. Here's what's involved.
A Steam Shower Turns Your Bathroom Into a Spa
Steam showers are one of the most popular luxury bathroom upgrades in Calgary. Here’s everything you need to know before installing one.
What Makes a Steam Shower Different
A steam shower is a fully enclosed shower with a steam generator. Water is heated to produce steam that fills the enclosure — creating a 43–50°C environment with 100% humidity. The benefits: respiratory relief, muscle relaxation, skin hydration, and stress reduction.
Essential Requirements
- Fully enclosed: Glass or tile on all sides, solid ceiling (angled toward the drain)
- Ceiling slope: 2″–4″ slope toward the drain so condensation doesn’t drip on you
- Sealed door: A tight door seal is critical — steam must stay inside
- Waterproofed ceiling: Steam affects the ceiling, not just walls — full waterproofing required
- Steam generator: Outside the enclosure (in a closet or mechanical space, max 25 ft from shower)
- Cold water line to generator: 1/2″ supply line
- Drain in the floor
Steam Generator Sizing
| Shower Volume (L × W × H) | Generator kW |
|---|---|
| Under 175 cu ft | 5–7.5 kW |
| 175–250 cu ft | 7.5–10 kW |
| 250–350 cu ft | 10–12 kW |
| 350–500 cu ft | 12–15 kW |
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⚠ Estimate Disclaimer: These are only ROUGH estimates that can vary wildly. Do not take these numbers as gospel. Having a defined scope of work and exact selections will give you clarity.
Popular Calgary brands: MrSteam, Steamist, Kohler, Amerec.
Additional Sizing Factors
- Natural stone walls require extra kW (stone absorbs heat)
- Glass walls lose heat faster than tile (add 10–15% capacity)
- Cold climates (Calgary): oversize slightly — cold outside temps affect enclosure
Electrical Requirements
- Most residential generators: 240V, 30–60A dedicated circuit
- GFCI protection required
- Run conduit and circuit during rough-in — expensive to add after
Controls and Features
- Digital control panel inside shower (waterproof)
- Auto-drain function (flushes generator after each use)
- Aromatherapy injector (essential oils)
- ChromaTherapy lighting
- Bluetooth audio (waterproof speakers)
- App control (some models)
Steam Shower Cost in Calgary
| Scope | Cost |
|---|---|
| Steam generator only (add to existing shower) | $1,500–$4,000 |
| New 3’×5′ tile steam shower with generator | $18,000–$35,000 |
| Large luxury steam shower (5’×8’+, full features) | $35,000–$80,000 |
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⚠ Estimate Disclaimer: These are only ROUGH estimates that can vary wildly. Do not take these numbers as gospel. Having a defined scope of work and exact selections will give you clarity.
Maintenance
- Flush the generator monthly (run the auto-drain function)
- Descale annually with generator descaling solution (Calgary’s hard water)
- Clean the steam head nozzle with a pin if blocked
- Seal tile grout annually
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Frequently asked questions
It's a premium feature that adds to the cost of an upscale or luxury ensuite; your fixed-price quote will vary based on your selections and square footage.
A sealed, fully waterproofed enclosure, a steam generator and good ventilation.
For many homeowners, yes — it turns a daily routine into a spa-like experience.
It needs to be a fully sealed, waterproofed enclosure, so it's best planned into the renovation.
Related reading: bathroom renovation guide, curbless showers, and luxury bathroom fixtures