{"product_id":"nfpa-90b-standard-for-the-installation-of-air-conditioning-and-ventilating-systems-2018","title":"NFPA 90B, Standard for the Installation of Air-Conditioning and Ventilating Systems 2018","description":"\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:a4c32e15-d9fc-4f1d-b0ed-f2fbe3265ddc-1\" data-testid=\"conversation-turn-4\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"c1f25a5b-7a7d-42ba-a7e4-b60921c84faf\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"92\" data-end=\"533\"\u003eImprove HVAC system safety and support code compliance with \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eNational Fire Protection Association\u003c\/span\u003e\u003c\/span\u003e NFPA 90B, Standard for the Installation of Warm Air Heating and Air-Conditioning Systems. This trusted standard provides comprehensive requirements for the construction, installation, operation, and maintenance of warm air heating and air-conditioning systems to help reduce the spread of fire, smoke, and hazardous gases throughout buildings.\u003c\/p\u003e\n\u003cp data-start=\"535\" data-end=\"892\"\u003eHeating and cooling systems are essential for comfort and indoor air quality, but in the event of a fire, HVAC systems can allow smoke and flames to spread rapidly if not properly designed and installed. NFPA 90B establishes critical safety provisions for HVAC systems, including ducts, filters, air distribution components, controls, and related equipment.\u003c\/p\u003e\n\u003cp data-start=\"894\" data-end=\"1136\"\u003eThe standard applies to indoor HVAC systems and air distribution systems used in one- and two-family dwellings and buildings under 25,000 cubic feet in volume, making it an essential resource for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy customers choose us over buying directly from publishers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe provide faster and more reliable service compared to ordering directly from publisher.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSame-day shipping available on eligible orders\u003c\/li\u003e\n\u003cli\u003eTrue overnight shipping options available\u003c\/li\u003e\n\u003cli\u003eFaster order processing and delivery support\u003c\/li\u003e\n\u003cli\u003eProfessional customer assistance for code and standards orders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhile publisher orders may typically require 7–10 business days for delivery, we help professionals get critical fire protection standards faster when timing matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"NFPA","offers":[{"title":"New Book \/ No Practice Exam \/ No Pre-Printed Tabs","offer_id":52429807976760,"sku":null,"price":164.99,"currency_code":"USD","in_stock":true},{"title":"New Book \/ No Practice Exam \/ Add pre-printed tabs","offer_id":52429808009528,"sku":null,"price":179.98,"currency_code":"USD","in_stock":true},{"title":"New Book \/ Add Practice Exam \/ No Pre-Printed Tabs","offer_id":52429808042296,"sku":null,"price":189.98,"currency_code":"USD","in_stock":true},{"title":"New Book \/ Add Practice Exam \/ Add pre-printed tabs","offer_id":52429808075064,"sku":null,"price":204.98,"currency_code":"USD","in_stock":true},{"title":"No Book \/ No Practice Exam \/ Add pre-printed tabs","offer_id":52429808107832,"sku":null,"price":14.99,"currency_code":"USD","in_stock":true},{"title":"No Book \/ Add Practice Exam \/ No Pre-Printed Tabs","offer_id":52429808140600,"sku":null,"price":24.99,"currency_code":"USD","in_stock":true},{"title":"No Book \/ Add Practice Exam \/ Add pre-printed tabs","offer_id":52429808173368,"sku":null,"price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/2633\/7080\/files\/nfpa-90b-standard-90b18.webp?v=1779877567","url":"https:\/\/nfpa-online.myshopify.com\/products\/nfpa-90b-standard-for-the-installation-of-air-conditioning-and-ventilating-systems-2018","provider":"nfpa.online","version":"1.0","type":"link"}