Check simultaneous hot-water demand and temperature rise
The fixtures used together and required temperature rise determine whether the proposed unit can keep up. The household’s routine matters more than bathroom count alone.
Review gas supply, venting and drainage
A conversion may need a different gas supply, electrical connection, vent route or condensate drain. If the old heater shared a chimney with a furnace, review the remaining venting arrangement too.
Plan access through the finished basement
Finished walls, flooring and narrow doorways can shape the work. The new location must leave room for future maintenance.
Compare tankless conversion with a new storage tank
A suitable storage tank may be an alternative. The proposal should explain installed cost, hot-water performance, maintenance and disruption for each reasonable option.
