Ask for JOE or GEORGE MILLS
email: pizzaovens@aol.com
.. phone: (800) 356-2506 .. fax: (734) 458-8860
VENTILATION
HOODS & CANOPIES
Ventilation is a critical element in the equipping of a pizza shop. Health and building departments have stringent rules as to the amount of air to be exhausted by various styles of hoods. It is also a requirement that the same amount of air exhausted from the building be brought back into the building at or near room temperature.
The air that is brought back into the building is referred to as make up air. A properly ventilated building has slightly higher air pressure than outside air pressure. If outside air pressure is higher than inside doors are hard to open and when opened outside air rushes in bringing dust, dirt, humidity, hot and or cold outside air making uncomfortable drafts. Gas fired appliances can starve for oxygen and not operate properly. Cooking odors are retained in the building and other problems arise.
There are hoods that have been tested by Underwriter laboratories or others such as ETL. Hoods thus tested and certified require substantially less exhaust and make up air than unlisted hoods some times half as much. Less air exhausted less A/C lost.
The required make up air can be provided in two ways. A separate make up air unit can be installed or sufficient air conditioning can be provided through the Heating & cooling system to supply the required make up air. We prefer the use of listed hoods and sufficient air conditioning. Cost wise the listed hoods and sufficient air conditioning is about the same, or a bit more, as unlisted hoods and make up air systems but there is a much better comfort level working with sufficient air conditioning and substantially less cost to operate.
It should be noted that most buildings used for carry out - delivery pizza shops are about 20 ft wide 60 or 70 ft. long and are usually equipped, as an empty building, with a 5 -ton air conditioner. Those first five tons of air conditioning are just about enough to break even with the heat of the oven, heat from the various compressors and food warmers. It is what ever you add to those first five tons of air conditioning that cools your lobby and work area. Usually we find that 10 to 12 tons or better of air conditioning is required to supply the needed make up air and cool the shop to tolerable working temperatures. Naturally larger sit down shops need More A/C.
In some parts of the nation where the temperature never falls very low a simple filtered fan system that brings in outside air can be used. Unfortunately that type system brings in a lot of extremely hot air during the warmer part of the day and the air conditioning system cannot cope making the shop very uncomfortable to work in. Most all makeup air system do not cool summer air just warm winter air making the shop extremely hot in summer. In the very few dry areas an evaporative cooler might be used. We do not recommend the above types of make up air systems.
We will recommend what we believe to be the best and least costly to operate oven and ventilation system for your pizza shop and offer options at various price levels. Naturally the final decision will be up to you.
Joe and George Mills Representing Olender Equipment
Call 1-800-356-2506 or email pizzaovens@aol.com
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Ventilation Issues Solved!
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