HVAC Furnace Startup Invoice — 80% furnace startup
- HVAC
On October 20, 2026, JLM HEATING AND AIR CONDITIONING documented HVAC at 2425 Bellevue Avenue, Maplewood, MO 63143.
- Record date
Available findings
- HVACCompleted work$0
Technician performed heat startup on a new 80% single-stage furnace: measured manifold gas pressure at 3.6 in. WC, adjusted blower tap and derated gas valve to 3 in. WC to achieve a 58° temperature rise (77.2° in / 135° out) and address customer-reported whistling sound.