Specifications include, but are not limited to: All openings shall be sealed or capped that can collect water. install security lighting per h/o location. WATER HEATER, GAS: 40 Gallon, Complete with permit & Green tag: 15-424: Installation of domestic water heater with a 6 yr. warranty on all parts and meet current codes and Section 15 – Plumbing – Water Heater. To include gas valve with flex line, water valves, "T&PR" valves with 3/4" relief line, combustion air vents, exhaust double wall vent flume to exterior with escutcheon, drain pan, and drain line to exterior. Installation to include approved gas stops and flex lines to appliance. Install/Replace a Central HVAC system with a gas furnace. : Install/Replace new or existing exhaust fan/heater and vented to the exterior not attic or crawlspace.