My consultant gave feedback on CFROST version 2. It has stated that the hard base is the riskiest concept. It also has the most payoff – because you can change heaters without draining the tank! I’m starting to think Responding to the question “Does heat transfer upward efficiently enough?” – we presume that the float-to-relax […]

My consultant gave feedback on CFROST version 1. In this document we refine version 1 to address the criticisms. The interior dimensions of the tank are 8 feet long by 5 feet wide… but a nice-but-not-necessary design goal would be for the pyramidal top to match the ratios of the pyramid of Giza. Target water […]

What CFROST Is NOT CFROST is intentionally constrained. The following clarifications exist to protect the project’s purpose, openness, and long-term viability. The initial CFROST build CFROST version 1 tank is based around Duncan Scott’s open source float tent. It is 99% completely inspired by Duncan Scott’s float tent with one variation – the base of […]

The ragtop DIY tank is shown here: as the design spec shows, it is simply: You may review this video or this post for more details. The topic of this post is the evolution of the Ragtop DIY tank to a “Slant-Top DIY tank” as follows: I will expand on these 2 points below: Using […]

Build Instructions Put a Giza Pyramid down I bought mine from Inner Fire Pyramids. They have 3 giza pyramids: So based on the size of the pool that you put inside, you need to get the appropriate pyramid and follow their assembly instructions. Put down the snow melting mat in the center of the pyramid […]

This is the first attempt to make use of the DIY Tank Report card to assess a build. Das holz posted an initial design and then suggested repurposing a portable bathtub. This report card will assess the usability of the portable bathtub in an objective fashion. Tank Heating and Temperature Control Pumping Water via the […]