How my custom hot tub design process works, step by step: from your rough sketch and site video to the 3D model, plumbing layout, CAD, build guide and parts quotation.
Author Archives: buildahottub
You can heat a hot tub from your home boiler using a heat exchanger on its own heating zone. Here’s how it works, how to size the exchanger properly, what it costs to run in 2026 and how it compares with a heat pump.
The Balboa Clim8zone is a neat, compact heat pump that plugs into Balboa spa packs. Here are the specs, the compatibility catch and my honest verdict.
A Spa Pool Combo, as the name suggests, is a combination of a Spa, Jacuzzi or Hot Tub combined with a swimming pool. Having a Spa Pool combo in your backyard is the ultimate relaxation zone. Somewhere to unwind after a long stressful day. It is also serious #backyardgoals and in this article, I am going explore all things Spa Pool related.
Which swimming pool parts you can and can’t use on a hot tub, why flow is the problem, and how a separate circulation loop lets a new build use pool pumps, sand filters and heaters.
Gunite and shotcrete aren’t DIY methods. Here’s what they actually are, and the three DIY-friendly alternatives (block, ICF and poured concrete) for building your own hot tub.
What type of spa construction methods exist? In short, there are three different types of spa construction. There are two types of spa construction that your average DIYer can do. These are poured concrete and block-built spa construction methods. The third method of spa construction is called Gunite or Shotcrete spa construction. This is only for the processional spa builder.
In this blog post, I will examine all three methods.
At its most basic, a spool pool is a small swimming pool. It is a swimming pool in every way apart from its size. It is much smaller than your regular pool. So where does the the term spool pool come from. Well, the main difference is that you are not going to be doing laps in your pool. You are more likely to be relaxing with a drink in your hand.
Yes, you can build a hot tub from cinder blocks. Here’s how to size it, build the base and reinforced walls, plumb, insulate and waterproof it, from someone who built his own.
Should you build a custom hot tub? When going custom makes sense, what’s possible, and the key decisions to make before anything is drawn up.










