WismerWalk

A young family with two electric cars asked for a driveway that could shrug off Markham winters without salt. The answer was a hydronic snow-melt apron embedded in a fan-pattern field, banded by a heavy charcoal soldier course that doubles as a wheel guide on a tight approach.

Routing the hydronic loop through an existing 200-amp service required a new sub-panel and a manifold location that wouldn't intrude on the garage interior — and the loop had to be pressure-tested before a single paver was set.

We installed the manifold in a weather-sealed exterior cabinet behind a cedar privacy screen, ran 16 mm PEX in a 200 mm grid across the apron, pressure-tested at 100 psi for 24 hours, then sand-set the pavers above without disturbing the loop spacing.