Mckenzie Corp Automated Chimney Venting Systems

[witneyenson]

This company must be a real bunch of losers to think posting spam messages will do anything good for them.

[J.P.M.]

The final piece of a boiler system and one of the most critical is the stack. Every fossil fuel fired appliance requires the flue gas to be safely vented. The efficiency in which this venting takes place directly affects the efficiency of the entire boiler system.

When people think of a stack system they typically picture a gravity type design; a masonry stack that relays on natural draft to vent the flue gasses. This design is very common in older installations and has been used for centuries. The gravity stack has performed well with the antiquated boiler burner designs of the past but leaves a lot to be desired for today's high efficiency systems.

Boiler room venting should accommodate the following:

• Modulating or modular boiler systems with variable heat outputs.
• Long horizontal vents with inadequate rise or capacity
• Excessive number of turns that create high-pressure loss and inadequate flow.
• Inadequate capacity due to space limitations or the connection of additional equipment to existing systems.
• The need for greater draft or flow than a low-height chimney can provide.
• Erratic or inadequate venting caused by wind, adverse internal pressures, restricted air supply, or indoor/outdoor temperature differences.
• Installation of high efficiency boiler systems to existing chimney system, resulting in the lack of draft and condensation due to lower flue gas temperatures.

Each of the above will impact not only the stack but also boiler efficiency. These unacceptable conditions may be remedied through the proper use of a mechanical draft system.

The rudimentary mechanical draft assist is a single speed fan that delivers a pre-set volume of air and utilizes a barometric damper for relief should the mechanical draft become too strong. Their design makes them rather inefficient and limits their application to certain types of chimney designs.

Today's constant pressure chimney automation systems have the ability to control, monitor and maintain pre-set draft requirements by varying the flow. By controlling the draft completely, we can reduce the need for combustion air and can apply the system to virtually any stack design.

EXHAUSTO's Chimney Automation System (CASV) is for installation and use with multiple and/or modulating boilers and water heaters. It can be used in conjunction with almost any type of appliance and fuel, whether it is forced draft, atmospheric or condensing design.

The Chimney Automation System maintains a perfect, constant draft for the appliances by modulating the chimney fan capacity. The system is activated when there is a call for heat. It will create and maintain a pre-set draft prior to or immediately after the appliance fires.

The system monitors the draft condition at any time and has an integrated safety function. Should the draft fall more than 40% below the set point for more than 12 seconds, it will deactivate the appliances to prevent a potentially hazardous situation.

Advantages to using a chimney automation system are as follows:

• Improved Aesthetics - A chimney automation system can improve the look of a building by hiding the stack. Tall stacks are no longer required allowing for terminations at the roof level.
• Cost Savings - the overall cost of an installation can be reduced. The stack will not need to be as tall or the diameter as wide compared to conventional gravity venting. In many cases sidewall venting can be utilized as well.
• Improved Safety - the risk of carbon monoxide spillage is eliminated with the use of a chimney automation system. In fact the Exhausto system includes a spillage-warning device as a standard feature.
• Design Freedom - no longer are designers limited as to how the venting system is to be incorporated into their plan. The use of the automated chimney system ensures proper draft and because it is an engineered system it meets with code requirements for the gravity system.
• Operational Savings - By controlling the draft across all operating conditions, boilers will operate at peak efficiency and provide a significant saving for the owner.

This is pure B.S. and dangerous as presented. Leave stack design and venting arrangements for the products of combustion to professionals who install and maintain the equipment.

J.P.M.

[russ]

The company must be a real bunch of sad sacks - they try to post this kind of tripe several times a week