Thermal expansion is not limited to storage or tank type water heaters. Tankless water heaters (TWH) can cause thermal expansion too. I previously touched on the consequences of not controlling thermal expansion, and this is an update to that post.
tankless water heater
Are you considering having your old tank-type water heater replaced with a tankless model? Before you go ahead with it, you need to know the consequences of going tankless. You’ll be surprised! Tankless Water Heater Also known as an instantaneous, on demand, or point of use water heater only provides a limited output of instant hot