Sauna & Cold Plunge Guides
The parts the calculators don’t cover — vapor barrier, ventilation, water care, and the buying decisions worth getting right.
How to Build a Home Sauna: A Step-by-Step PlanThe whole home-sauna project in order: how big to build, what heater and circuit you need, framing to first heat, plus a shopping list so nothing is forgotten.
All guides
Sauna Vapor Barrier: What It Is and Where It Goes
Why a sauna needs a foil vapor barrier, exactly where it sits in the wall, and the taping and gap mistakes that rot a room.Sauna Ventilation: Where the Vents Go and Why
Low intake by the heater, low exhaust on the opposite wall, how sauna ventilation actually drives convection, and the sizing to use.Outdoor vs Indoor Sauna: What Actually Changes
Heater sizing, wood choice, electrical, and drainage, the real differences between an indoor and outdoor sauna build.What a Sauna Really Costs to Own
Upfront, electrical install, and monthly running cost of a home sauna, the full picture, with numbers you can adjust.Do You Need GFCI for a Sauna Heater?
What the code generally says about GFCI/GFPE on sauna heater circuits, and why the answer is local.Sauna Stones: Which Rocks, How Many, How to Stack
The right stone type for a sauna heater, how much you need, and how to arrange them for good löyly.Cold Plunge Water Care: Ozone, Filtration and Changes
How to keep cold plunge water clean between refills, ozone, filtration, circulation and when to just change it.Insulating a Sauna: Walls, Ceiling and R-Value
How much insulation a sauna needs, where the ceiling matters most, and how insulation ties to heater size.Electric vs Wood-Burning Sauna Heater
The real trade-offs between an electric and a wood-fired sauna heater: control, cost, install and where each makes sense.Cold Plunge: Chiller vs Ice
Ice versus a chiller for your cold plunge, the real cost, convenience and temperature-control comparison.Sauna Heater Placement and Clearances
Where to put the sauna heater, the clearances to guard and benches, and how placement ties into ventilation.Cold Plunge: How Cold and How Long
Sensible starting temperatures and durations for cold plunging, and how that sets the chiller you need.Can You Wire Your Own Sauna? Panel Capacity & Permits
Whether the sauna circuit is a DIY job, how to tell if your electrical panel has room and enough service, and what a permit and inspection involve.Sauna Construction Basics: Framing, Floor, Drainage & Benches
The build itself: how the walls frame up, what to do about the floor and drainage, and how to size and build sauna benches and the door.How to Build a DIY Cold Plunge: A Step-by-Step Plan
Build a cold plunge from a tub and a chiller: how to size it, plumb the chiller, power it, keep the water clean, plus a shopping list and DIY-vs-buy costs.Sauna Heater Controls: Built-In vs Wall vs Wi-Fi
The three ways to control a sauna heater, what you gain by paying up for a wall panel or an app, and which control type to choose.How to Choose a Cold Plunge Tub
Size, insulation, material and buy-vs-build: how to pick the right cold plunge tub before you pick the chiller.
Why a sauna needs a foil vapor barrier, exactly where it sits in the wall, and the taping and gap mistakes that rot a room.Sauna Ventilation: Where the Vents Go and Why
Low intake by the heater, low exhaust on the opposite wall, how sauna ventilation actually drives convection, and the sizing to use.Outdoor vs Indoor Sauna: What Actually Changes
Heater sizing, wood choice, electrical, and drainage, the real differences between an indoor and outdoor sauna build.What a Sauna Really Costs to Own
Upfront, electrical install, and monthly running cost of a home sauna, the full picture, with numbers you can adjust.Do You Need GFCI for a Sauna Heater?
What the code generally says about GFCI/GFPE on sauna heater circuits, and why the answer is local.Sauna Stones: Which Rocks, How Many, How to Stack
The right stone type for a sauna heater, how much you need, and how to arrange them for good löyly.Cold Plunge Water Care: Ozone, Filtration and Changes
How to keep cold plunge water clean between refills, ozone, filtration, circulation and when to just change it.Insulating a Sauna: Walls, Ceiling and R-Value
How much insulation a sauna needs, where the ceiling matters most, and how insulation ties to heater size.Electric vs Wood-Burning Sauna Heater
The real trade-offs between an electric and a wood-fired sauna heater: control, cost, install and where each makes sense.Cold Plunge: Chiller vs Ice
Ice versus a chiller for your cold plunge, the real cost, convenience and temperature-control comparison.Sauna Heater Placement and Clearances
Where to put the sauna heater, the clearances to guard and benches, and how placement ties into ventilation.Cold Plunge: How Cold and How Long
Sensible starting temperatures and durations for cold plunging, and how that sets the chiller you need.Can You Wire Your Own Sauna? Panel Capacity & Permits
Whether the sauna circuit is a DIY job, how to tell if your electrical panel has room and enough service, and what a permit and inspection involve.Sauna Construction Basics: Framing, Floor, Drainage & Benches
The build itself: how the walls frame up, what to do about the floor and drainage, and how to size and build sauna benches and the door.How to Build a DIY Cold Plunge: A Step-by-Step Plan
Build a cold plunge from a tub and a chiller: how to size it, plumb the chiller, power it, keep the water clean, plus a shopping list and DIY-vs-buy costs.Sauna Heater Controls: Built-In vs Wall vs Wi-Fi
The three ways to control a sauna heater, what you gain by paying up for a wall panel or an app, and which control type to choose.How to Choose a Cold Plunge Tub
Size, insulation, material and buy-vs-build: how to pick the right cold plunge tub before you pick the chiller.