{"id":2837,"date":"2021-07-22T10:49:44","date_gmt":"2021-07-22T10:49:44","guid":{"rendered":"https:\/\/www.jacklehr.com\/?p=2837"},"modified":"2026-09-30T07:35:17","modified_gmt":"2026-09-30T11:35:17","slug":"forced-air-furnace","status":"publish","type":"post","link":"https:\/\/www.jacklehr.com\/blog\/heating-service\/forced-air-furnace\/","title":{"rendered":"Should You Enclose Your Forced-Air Furnace?"},"content":{"rendered":"\n

When considering furnace installation for your Greater Lehigh Valley home, there are plenty of questions to sort through. You need to find the right furnace type, judge its rating, consult a professional on size and specifics, and more. One, smaller (but equally important) question you may find yourself asking is: should you enclose your furnace?<\/span><\/p>\n\n\n\n

There are two primary reasons for enclosing a furnace system, both of which are for different but practical reasons. Which one you\u2019re considering has an impact on our furnace installation, and should be decided upon with the assistance of your friendly Jack Lehr<\/span> Heating Cooling & Electric professional as soon as possible in the planning stage.<\/p>\n\n\n\n

Can You Safely Enclose a Forced-Air Furnace?<\/strong><\/h2>\n\n\n\n

It depends on why you\u2019re asking! Are you looking to:<\/p>\n\n\n\n

Improve The Efficiency of Your System<\/strong><\/p>\n\n\n\n

Many homeowners turn to enclosing forced-air furnaces with the intention of feeding it outside air to improve combustion efficiency. This can<\/em> see positive results, provided it\u2019s been handled appropriately. Enclosing a furnace for this purpose carries risk if not handled properly and according to local building codes. Feeding your furnace exterior \u201ccombustion air\u201d has been shown to see mild returns in comfort levels and efficiency. It\u2019s mostly a question of whether you find it worth it compared to the cost of safely enclosing the system.<\/p>\n\n\n\n

Hide Your System For Aesthetic<\/span> Reasons<\/strong><\/p>\n\n\n\n

This one is less of a \u201cshould I\u201d and more of a \u201ccan I\u201d. Many homeowners intend to use basements or other areas where a furnace may commonly be installed as an additional space. This can be for simple storage, using the space as an entertainment or receiving area or other reasons. The answer is yes, of course you can<\/em> enclose your furnace. Similar to the other reason, this has to be handled carefully, and within strict specifications to be safe and effective.<\/p>\n\n\n\n

No matter which reason you choose, enclosing a furnace should always be a matter of extensive discussion with your furnace installation<\/a> professional. The space has to allow for appropriate ventilation (to avoid a number of health and safety issues, as well as ensuring proper furnace performance), and has to allow for easy access. Sooner or later all furnaces need maintenance and repair, and it simply won\u2019t do to be unable to access it!<\/p>\n\n\n\n

Also be aware<\/strong> that our New Jersey weather is nothing to scoff at. If you plan on enclosing your furnace to expose it to outside air, it cannot<\/em> be installed anywhere near pipes or other exposed plumbing. You\u2019ll be dealing with frozen pipes in a jiffy otherwise!<\/p>\n\n\n\n

Professional Forced-Air Furnace Installation<\/strong><\/h2>\n\n\n\n

To learn more about the specifics of furnace installation, or to find answers to any questions you may have, contact a professional<\/a> at Jack Lehr<\/span> today! Our teams are ready and capable of handling your every HVAC need!<\/p>\n\n\n\n

Frequently Asked Questions<\/strong><\/h2>\n\n\n\n

Question: Can I enclose a forced-air furnace?<\/strong>
<\/strong>Answer:<\/strong> Yes, a forced-air furnace can be enclosed, but the enclosure must be designed carefully. The furnace still needs adequate ventilation, proper combustion air, and enough clearance for safe operation. It also needs to remain accessible for routine maintenance and repairs, so professional planning is important before building around the equipment.<\/p>\n\n\n\n

Question: Does enclosing a furnace improve energy efficiency?<\/strong>
<\/strong>Answer:<\/strong> Enclosing a furnace and supplying it with outside combustion air may provide modest improvements in comfort and efficiency when done correctly. However, the benefits should be weighed against the cost of building a safe enclosure. Any changes should follow local building codes and the furnace manufacturer\u2019s ventilation requirements.<\/p>\n\n\n\n

Question: How much ventilation does an enclosed furnace need?<\/strong>
<\/strong>Answer:<\/strong> An enclosed furnace needs enough ventilation to support safe combustion and proper equipment performance. The exact requirements depend on the furnace, enclosure size, fuel type, and local building codes. Because inadequate airflow can create safety and performance problems, ventilation requirements should be reviewed by a qualified HVAC professional before construction.<\/p>\n\n\n\n

Question: Can I build a wall or closet around my furnace?<\/strong>
<\/strong>Answer:<\/strong> You can build a wall or closet around a furnace for aesthetic or space-planning reasons, but adequate clearance and service access must be maintained. Technicians need enough room to inspect, maintain, and repair the equipment. The enclosure must also provide proper airflow and comply with applicable safety requirements.<\/p>\n\n\n\n

Question: Where should an enclosed furnace be located?<\/strong>
<\/strong>Answer:<\/strong> An enclosed furnace should be positioned where it has proper ventilation, adequate service access, and sufficient clearance from surrounding materials. If the enclosure uses outside air, it should also be kept away from vulnerable plumbing that could freeze during cold weather. A professional can evaluate the safest placement for the system.<\/p>\n","protected":false},"excerpt":{"rendered":"

When considering furnace installation for your Greater Lehigh Valley home, there are plenty of questions to sort through. You need to find the right furnace type, judge its rating, consult a professional on size and specifics, and more. One, smaller (but equally important) question you may find yourself asking is: should you enclose your furnace? […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[6,100,9],"class_list":["post-2837","post","type-post","status-publish","format-standard","hentry","category-heating-service","tag-heating","tag-home-improvement","tag-indoor-air-quality"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/posts\/2837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/comments?post=2837"}],"version-history":[{"count":3,"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/posts\/2837\/revisions"}],"predecessor-version":[{"id":5956,"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/posts\/2837\/revisions\/5956"}],"wp:attachment":[{"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/media?parent=2837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/categories?post=2837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jacklehr.com\/blog\/wp-json\/wp\/v2\/tags?post=2837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}