# HVAC System

## System Overview

<table id="bkmrk-type%5Bcentral-air%2C-he"><tr><td>**Type**</td><td>*\[Central air, heat pump, gas furnace, etc.\]*</td></tr><tr><td>**Brand / Model**</td><td>*\[Brand and model number\]*</td></tr><tr><td>**Year Installed**</td><td>*\[Year\]*</td></tr><tr><td>**Location of Indoor Unit**</td><td>*\[e.g., Garage, attic, utility closet\]*</td></tr><tr><td>**Location of Outdoor Unit**</td><td>*\[e.g., Side of house near driveway\]*</td></tr><tr><td>**Thermostat Type**</td><td>*\[e.g., Nest, Ecobee, Honeywell — smart or manual\]*</td></tr></table>

## Filter

<table id="bkmrk-filter-size%5Be.g.%2C-20"><tr><td>**Filter Size**</td><td>*\[e.g., 20x25x4\]*</td></tr><tr><td>**Filter Type**</td><td>*\[MERV rating, brand\]*</td></tr><tr><td>**Change Frequency**</td><td>*\[e.g., Every 3 months\]*</td></tr><tr><td>**Where to Buy**</td><td>*\[Store or online source\]*</td></tr></table>

## Service Contract

<table id="bkmrk-hvac-company%5Bcompany"><tr><td>**HVAC Company**</td><td>*\[Company name\]*</td></tr><tr><td>**Phone**</td><td>*\[Phone\]*</td></tr><tr><td>**Service Plan?**</td><td>*\[Yes/No — details\]*</td></tr><tr><td>**Last Service Date**</td><td>*\[Date\]*</td></tr><tr><td>**Typical Service Schedule**</td><td>*\[e.g., Spring and fall tune-ups\]*</td></tr></table>

## Emergency Notes

*\[Where is the emergency shutoff? Any known issues? What to do if it stops working — e.g., "Call \[company\], they know the system."\]*