How Heat Harmony cut weekly booking admin in half - and made the website part of the experience.

A saunagus studio was losing hours every week to manual booking admin, and its website said nothing about what it actually feels like to be there. Today the operations run themselves, and the digital experience finally matches the heat.

Heat Harmony SaunaGus · Copenhagen Late 2024 – ongoing

Preface

I didn't find Heat Harmony as a consultant. I found them as a customer - in the sauna, towel in hand. That turned out to matter: when you've been on the receiving end of a business, you already know which parts of the experience are worth protecting and which parts quietly get in the way.

The problem

Heat Harmony runs on YOGO, a booking platform for class-based businesses. It works - but every week, hours disappeared into it: typing in participants' names, creating shifts by hand, keeping the schedule in sync. Time the founders wanted to spend on the actual sauna experience, not on admin.

Meanwhile, the website didn't carry any of the atmosphere the studio is known for. Heat Harmony creates an experience in the sauna - but online, there was nothing of it.

The solution

The work landed in layers, each removing a piece of manual load or adding a piece of experience:

• A new website, built from scratch - designed around bookings and customer experience, not brochureware. Events are now discovered and promoted on the site automatically.
• YOGO integrated end-to-end - the booking system, the website, and shift planning talk to each other instead of through a human.
• Automations behind the scenes with n8n - employee benefits handled automatically, facilitator names kept in sync between systems, and a stack of maintenance tasks that used to be someone's chore.
• A custom shift planner - the off-the-shelf tool (SmartPlan) was eventually replaced with YesYogo, a plug-and-play shift planner I built that connects directly to YOGO.

Results

"Before we hired him, we used so many hours every week on YOGO - putting people's names in, creating the shifts. Now it has saved us maybe 50% of the time we spend on YOGO every week. That has been a huge difference for us." Anne Founder · Heat Harmony

"It's so crazy to see the difference. It's like a whole new world." Frederik Founder · Heat Harmony

And the part they didn't expect: the website became an extension of the product. In their own words, they now have "a full circle of the sauna experience" - the experience starts on the homepage, not at the door.

You can hear it from Anne & Frederik directly in their video testimonial.

More than the build

The integrations and the website are the visible part. But if you ask Anne and Frederik what made the collaboration work, they talk about something else: the ping pong.

Listening first, then pushing back with questions and suggestions - what is this business actually about, what do customers need to know, how can the employees work more smoothly. Some of the highest-value changes were small ideas that came out of those conversations, not out of a backlog. A Spotify playlist on each facilitator's profile, for example: a tiny feature, never on any roadmap, that adds real value for customers choosing their gus.

That's the part of the work I care most about. Anyone can ship an integration. The compounding value comes from having someone who understands your business well enough to keep spotting the next small, smart thing.

What does it mean for you?

If your week leaks hours into a booking system, a spreadsheet, or a copy-paste routine, that's not a fact of life - it's a design flaw. And usually the fix isn't a big system rebuild; it's a series of well-chosen small moves, made by someone who takes the time to understand how your business actually runs.

All quotes are from a recorded interview with Anne & Frederik (2026), lightly edited for readability. The ~50% time saving is their own estimate of weekly time spent in YOGO, not an instrumented measurement. Heat Harmony is an active client; this page was written by me, unpaid and in good faith.