Sauna Heater Size Calculator

📏 Measure Your Sauna Space

Accurate dimensions ensure the perfect heater match

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🎯 Why Dimensions Matter

Your sauna's volume (length × width × height) is the most critical factor in selecting the right heater. A heater that's too small won't reach proper temperature, while one that's too large wastes energy and can overheat your space.

💡 Pro Tip: Measure the interior space of your sauna where you'll actually sit. Don't include wall thickness or equipment areas.
Total Cubic Feet Volume of the Sauna
0 cu ft

❄️ Cold Surfaces & Insulation

These factors significantly impact heating requirements

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🪟 What Are Cold Surfaces?

Glass doors, windows, tile walls, brick, concrete, and stone absorb significantly more heat than wood. These materials require extra heating power to maintain proper sauna temperature.

📐 How to Measure: Add up the width × height of all glass doors, windows, and non-wood surfaces. For example, a 3ft × 7ft glass door = 21 sq ft of cold surface.
Choose wisely: Poor insulation adds 15% to your heating needs. Well-insulated walls keep heat in and reduce energy costs.
Total Square Feet of Cold Surfaces
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💡 Note: The floor doesn't count as a cold surface since you're sitting above it. Focus on walls, doors, and windows.

🌍 Location & Climate

Environmental factors affect heating performance

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🌡️ Why Location & Climate Matter

Outdoor saunas face wind, cold air, and temperature fluctuations that require significantly more heating power. Cold climates compound this effect, potentially requiring 30% more heating capacity than indoor saunas.

Location impact: Indoor saunas benefit from home heating, while outdoor saunas must combat external temperatures and weather.

🎯 Your Perfect Heater Match

Personalized recommendations based on your specifications

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📊 Your Adjusted Sauna Volume
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📋 Calculation Breakdown
ℹ️ How we calculated this: We started with your base volume, then added adjustments for cold surfaces, insulation quality, and location/climate to ensure your heater can maintain optimal temperature (150-195°F) even in challenging conditions.

✨ Your Recommended Heaters

Perfectly matched to your sauna specifications

💡 Still not sure? All recommended heaters will work for your space. Consider factors like: brand preference, built-in vs external controls, and aesthetic design. Need help? Contact our sauna experts for personalized guidance!

Customer Service

Mon-Sat, 9am-6pm EST.

Talk to a sauna expert

(925) 678-8910

Get in Touch

info@saunaheaters.com

Address

11501 Dublin Blvd,
Suite 200, Dublin, California 94568, United States.