Gas, venting and the permit in Salisbury
A tankless conversion is a permit job without exception, because it changes the fuel routing, the venting, or both. In Salisbury that goes through Rowan County Building Inspections, for the city as well as the county, and we pull it rather than working around it.
Three things decide whether the install is straightforward or not:
- Gas line capacity. The single most common reason a tankless quote comes in higher than expected. We size the line to the real load rather than assuming the existing one will do.
- Venting. Condensing units need their own sealed venting and a condensate route. Where the old tank vented into a shared flue, that flue may now be oversized for whatever is left on it.
- Where it goes. Utility room, closet, crawlspace and occasionally a true basement, which is rarer everywhere else in our area but does turn up in the older Salisbury stock. Access and the route in are the two things that move the price here, and we establish both before the visit rather than after.
What Salisbury itself changes
The housing in Salisbury
Salisbury has one of the most substantial historic housing stocks in North Carolina. The Salisbury Historic District alone counts hundreds of contributing buildings, and it is joined by the North Main Street district, largely built between about 1900 and 1930, plus the Brooklyn-South Square and North Long Street-Park Avenue districts. Late Victorian, Colonial Revival and Craftsman bungalows in quantity. That is a wonderful place to live and a genuinely awkward place to fit a water heater, because almost none of those houses were designed around one.
The pipe era
The pre-1930 districts are prime territory for galvanised supply still in service, and for a heater that has been replaced several times without anyone touching the pipework around it. Weak flow on hot and cold together is the supply. Weak flow on hot alone is the heater or a heat trap nipple, and those are very different bills.