If you’ve wondered how to replace a direct contact water heater, you should keep reading. The Youtube video “How to Replace a Direct-Vent Water Heater – This Old House” shows the perfect way to do it safely and why should you consider a new type of water heater. Let’s find out more! Firstly, you need to shut off the gas supply and the electricity to the water heater. You also must get water out of the tank, so you’ll need to shut that main water feed. Video Source Normally, you can do that easily with the valve at the top.…