Tankless

Condensing tankless units cost more upfront but vent with cheap PVC and run more efficiently. Here’s the real tradeoff.

Tankless venting material depends on whether your unit is condensing or non-condensing. Get this wrong and it’s a code violation, not just inefficient.

Size a tankless water heater the right way: peak simultaneous flow rate (GPM) plus the temperature rise your climate actually requires.

Everything to know before buying or living with a tankless water heater: sizing, gas vs. electric, installation basics, and real maintenance needs.