Practical DIY cold plunge & sauna guides
Step-by-step build instructions, maintenance walkthroughs, and beginner protocols. Every guide is written by practitioners who've actually built these systems — no vague advice, no filler.
Start Here: Beginner's Roadmap
New to cold exposure entirely? Start here. 4-week ramp-up protocol, no equipment required.
Read guide →Cold Plunge for Beginners
Your first 10 sessions, session-by-session. Common mistakes and how to avoid them.
Read guide →How to Build a Stock Tank Plunge
The complete 10-step build for the most popular DIY cold plunge vessel.
Read guide →How to Build a Chest Freezer Plunge
The highest-value DIY plunge: $400-600 for a fully insulated system.
Read guide →How to Clean Cold Plunge Water
4 products, 10 minutes per week, water that stays fresh for months.
Read guide →How to Drain Your Cold Plunge
7-step drain process, responsible water disposal, and the math on drain cycles.
Read guide →How to Wire the Inkbird ITC-308
3 connections, 5 settings, complete troubleshooting. The $35 brain of your plunge.
Read guide →How to Install an Ozone Generator
Complete installation of the Coospider 300 mg/h: venturi, tubing, timer, safety.
Read guide →How to Do Contrast Therapy
The complete hot-cold cycling protocol. Includes the Søberg Principle.
Read guide →How to Breathe During Cold Plunge
The technique that turns suffering into adaptation. Simplified Wim Hof method.
Read guide →How to Stay Safe in Cold Plunge
Medical contraindications, hypothermia warning signs, electrical safety, emergencies.
Read guide →How to Start Cold Exposure
4-week cold shower protocol that prepares your nervous system for cold plunge.
Read guide →Winter Maintenance Guide
Freeze protection, condensation, chiller operation, and personal safety in winter.
Read guide →Filters and Pumps Setup
Sizing, installation, and maintenance of the unsung hero of your plunge.
Read guide →Budget Build Guide
3 complete build plans from $280 to $1,800 with itemized costs.
Read guide →Owner's Checklist
Pre-build, weekly, monthly, annual, and winter checklists. Print this page.
Read guide →15 Cold Plunge Mistakes
Build mistakes, water care mistakes, and session mistakes that ruin your experience.
Read guide →Best Cold Plunge Tub
Rubbermaid vs Cold Pod vs chest freezer vs commercial. Complete buyer's guide.
Read guide →Best Ozone Generator
Coospider vs Ambohr vs Fuceter. Sizing, runtime, installation.
Read guide →Best Infrared Sauna Blanket
HigherDose vs budget options. Heat, EMF, build quality.
Read guide →Best Cold Plunge Accessories
The essential 5, the comfort 5, and recovery gear. Budget vs premium picks.
Read guide →EONIX Chiller Review
Real-world performance of our default 1/2 HP chiller recommendation.
Read review →HigherDose Sauna Blanket Review
The $899 premium sauna blanket — is it worth the price?
Read review →Rubbermaid Stock Tank Review
Why this $130 livestock tank is still the DIY plunge king.
Read review →Best Cold Plunge Chillers 2025
Annually updated list of the best chillers by use case.
Read guide →Best Home Saunas 2025
The best infrared blankets, tents, and domes for 2025.
Read guide →Ice Needed Calculator
How much ice do you need for your plunge? Interactive calculator.
Use tool →Electricity Cost Calculator
Calculate your monthly and annual cold plunge electricity costs.
Use tool →Plunge Volume Calculator
Calculate water volume, weight, and displacement for your tub.
Use tool →Cloudy Water Fix
5 causes, diagnostic table, and 24-hour clear water protocol.
Read guide →Garage Cold Plunge Setup
Electrical, floor protection, insulation, humidity management.
Read guide →Indoor Cold Plunge Setup
Basement, room, bathroom — humidity, noise, floor protection.
Read guide →Outdoor Cold Plunge Setup
UV protection, wildlife, weather, electrical safety.
Read guide →Apartment Cold Plunge
Weight distribution, vessel options, lease considerations.
Read guide →Cold Plunge for Recovery
Athletic recovery protocol, the hypertrophy caveat, gear.
Read guide →Cold Plunge for Weightlifting
The hypertrophy blunting truth and how to plunge without losing gains.
Read guide →Cold Plunge for Mental Health
Depression, ADHD, addiction recovery applications.
Read guide →Cold Plunge for Inflammation
The science of cold-induced inflammation reduction.
Read guide →Cold Plunge for Immune System
What research shows about cold exposure and immunity.
Read guide →Cold Plunge for Weight Loss
Honest truth about calorie burn and brown fat activation.
Read guide →Morning Cold Plunge Routine
The ultimate AM routine: cold + sunlight + delayed caffeine.
Read guide →Cold Plunge for Dads
Fitting plunge into family life, involving kids, finding solitude.
Read guide →Cold Plunge for Women
Hormonal cycle, pregnancy, postpartum, menopause guidance.
Read guide →Cold Plunge After 50
Benefits, increased risks, conservative protocol, medication interactions.
Read guide →Cold Plunge for Athletes
Master guide: sport-specific protocols, training integration.
Read guide →Cold Plunge for Travel
Maintaining practice on the road: hotels, studios, natural water.
Read guide →13 Myths Debunked
Calorie burn, colder is better, detox — research-backed debunking.
Read guide →Complete Buyer's Checklist
6-phase printable checklist from research to maintenance.
Read guide →