This blog about the Product Catalog in Dynamics 365 will cover Price Lists and Price List Items. The smoke and creosote from your stoves or fireplace will quickly gum up the workings of such caps.This is Part 5 of a 5 Part series on the Dynamics 365 for Sales Product Catalog. * Do not use mechanical caps which rely on spinning turbines or windvanes. This may have less importance if you have a stove hooked up to the fireplace, but might cause problems with an open fire. * Some draft increasing caps cut down on the effective cross sectional area of the chimney. When considering a draft increasing cap for bout chimney, keep the following point in mind: The manufacturers also make adapters which allow use on masonry chimneys. These are the same caps mentioned earlier in this article for use with metal chimneys. If you have draft problems you can use "draft increasing" or vacuum chimney caps which are designed to use the wind to create a stronger updraft. If neither of these methods work, manufacturers also provide mounting angles or other fasteners which can be lag bolted or cemented down to theta of the chimney structure. If the chimney is unlined or the flue does not protrude far enough out the top, inside mounting models can be used. These caps are mounted onto the chimney in various ways, the most popular being screws which are spaced around the base angle of the cap and tightened against the flue tile. Most models feature side screening which keeps most birds and small animals out of the chimney and also keeps larger sparks from existing the chimney. The most popular styles are stainless steel and black painted steel. Standard caps are made from a number of materials including steel, stainless steel, copper or aluminum. Standard Cap with screen – Black or Stainless Steel Draft Increasing Caps Caps with integral Damper Mechanisms Custom Caps – Metal and Masonry Custom sizes and styles are also produced by many manufacturers. Note about chimney sizes – The three most popular sizes for masonry chimneys are 8" x 8", 8" x 12" and 12" x 12". Increase draft of chimney, especially in areas with constant wind. This will extend the life of the crown and eliminate some causes of cracking of the flue tile.Ĥ. Sheds ice and rain from the chimney crown, which is the cement cover on the top of the chimney structure. This can help reduce the chimney smell that often invades homes in the warmer weather.ģ. Keeps Rain and moisture from building up inside chimney. Keeps Animals, especially Raccoons and Birds, from setting up home in your chimney or fireplace.Ģ. This can destroy the cap or at the very least require another trip on top of the home to reinstall it.ġ. Replacement/Reinstallation – Chimney caps can blow off in high winds. This is usually a problem only with older woodstoves and/or the use of green (unseasoned) wood.Ĥ. Discoloration of chimney exterior – In some cases, creosote and tar can collect on the chimney cap and then run down the outside of the chimney structure. This will cause draft reductions and poor performance of your stove/fireplace.ģ. Clogging of Screen in Cap – Some chimney caps have small screening which can become clogged with soot and creosote after heavy use. Draft Restriction – An improperly designed or installed chimney cap can possibly reduce the draft of a chimney.Ģ. Let’s list negative and positive points and then we’ll discuss the different models that are available.ġ. There are advantages and disadvantages of capping a masonry chimney or fireplace. Check the WeatherShield link above for information about a model (WSA TDW) with this feature. Special caps are available for these chimneys to assure proper cooling. A HOUSE FIRE COULD RESULT FROM CLOSING THESE VENTILATION SLOTS! If your chimney is of this type, be certain not to close off the venting slots on the top. Note: Some metal chimneys are "air cooled" by venting that is on the top. Another option is a "generic" metal chimney termination such as the WeatherShield at: If that fails, you can often use a cap from a similar brand, but make certain you confirm this with the store where you are purchasing. If you don’t have draft problems and just need a replacement cap, first try to find the same brand as the existing termination. Please check with the manufacturers and your chimney professional to determine if these devices will work on your metal chimney. In this article we’ll take an in-depth look at the different types of chimney caps and answer this burning question once and for all. The various claims made by chimney sweeps, cap manufacturers and fireplace retailers can often confuse the issue.
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