I currently have a oil fired water heater venting to a tile lined masonry chimney AND it is the only appliance that chimney is serving. I want to replace this with a natural gas water heater, tank type, not tankless. Highest efficiency is not that important. I do NOT want to have to use a chimney liner.
What is my best option? The water heater is located in a large basement, so combustion air would not be a problem. I am considering an Induced Draft Gas Water Heater Power Vent unit for ease of installation. Am I right in thinking this type only needs a single PVC vent? Thanks for any input. You could even suggest brands.