Plenum Installation

A supply air plenum is a sheet metal box that attaches to the outlet of a furnace, air handler, or AC coil and is used as a central manifold for other ductwork or take-offs to connect to...

Furnace Installation

When it comes to furnaces, there are a wide variety of different makes and models. All of them in many ways are similar, though there may be characteristic differences between brands...

Furnace Replacement

HVAC companies that are specializing on the new construction usually do not too much involved in furnace replacement business or, if it is a big company, it may have a special department dedicated just to it...

Tools in My Work Apron

Have you ever wondered what kinds of tool an ordinary residential ductwork installer carrying in his pouch?
On this and on the following pages you can see a complete set of all necessary tools that I’m usually carrying in my pouch, keeping in my toolbox or having in my van...

From Code:

G2406.2 (303.3) Prohibited locations. Appliances shall not
be located in sleeping rooms, bathrooms, toilet rooms, storage
closets or surgical rooms, or in a space that opens only into such
rooms or spaces, except where the installation complies with
one of the following:

1. The appliance is a direct-vent appliance installed in
accordance with the conditions of the listing and the
manufacturer’s instructions.

2. Vented room heaters, wall furnaces, vented decorative
appliances, vented gas fireplaces, vented gas fireplace
heaters and decorative appliances for installation in
vented solid fuel-burning fireplaces are installed in
rooms that meet the required volume criteria of Section
G2407.5.

3. A single wall-mounted unvented room heater is installed
in a bathroom and such unvented room heater is
equipped as specified in Section G2445.6 and has an
input rating not greater than 6,000 Btu/h (1.76 kW). The
bathroom shall meet the required volume criteria of Section
G2407.5.

4. A single wall-mounted unvented room heater is installed
in a bedroom and such unvented room heater is equipped
as specified in Section G2445.6 and has an input rating
not greater than 10,000 Btu/h (2.93 kW). The bedroom
shall meet the required volume criteria of Section
G2407.5.

5. The appliance is installed in a room or space that opens
only into a bedroom or bathroom, and such room or
space is used for no other purpose and is provided with a
solid weather-stripped door equipped with an approved
self-closing device. All combustion air shall be taken
directly from the outdoors in accordance with Section
G2407.6.