Peter's HVAC Advisory

Built by a Red Seal Refrigeration Mechanic • Tools that keep up with the trade.

• Bug fixes & changes

PT Charts Free R-410A Diagnostic HVAC Lens

HVAC Lens

Superheat, subcooling and PT on one screen.

A one-page calculator for HVAC/R techs. Type your readings. Get the answer.

Built by a Red Seal refrigeration mechanic in Calgary. Free while in beta. Beta testers never pay. After beta, new users pay $19.99 CAD/month.

HVAC Lens superheat and subcooling calculator on a phone

Free public tools

Built by a Red Seal Refrigeration Mechanic for techs who need real numbers before they recover, replace, or walk away.

This website is free. The field app is a separate product on hvaclens.ca.

Field tools that used to live in Members have moved to HVAC Lens — open hvaclens.ca or Get HVAC Lens.