standby generator sizing

They come in the three sizes mentioned in Step 1 8.5 kW, 12.5 kW, and 14 kW so that homeowners can find the perfect size for their house and individual family needs. Get helpful tips and buying advice from our experts.\"}]},{\"URL\":\"power\\\/electric-generators-on-sale.html\",\"displayText\":\"Specials\",\"sectionLinks\":{\"columns\":\"6\",\"linkItems\":[{\"URL\":\"power\\\/portable-generators-on-sale.html\",\"imageURL\":\"nav-image\\\/100\\\/portable-7-4.jpg\",\"displayText\":\"Portable Generators On Sale\"},{\"URL\":\"power\\\/standby-generators-on-sale.html\",\"imageURL\":\"nav-image\\\/100\\\/standby-7-1.jpg\",\"displayText\":\"Standby Generators On Sale\"},{\"URL\":\"power\\\/pto-generators-on-sale.html\",\"imageURL\":\"nav-image\\\/100\\\/pto-7-2.jpg\",\"displayText\":\"PTO Generators On Sale\"},{\"URL\":\"power\\\/rv-generators-on-sale.html\",\"imageURL\":\"nav-image\\\/100\\\/rv-7-2.jpg\",\"displayText\":\"RV Generators On Sale\"},{\"URL\":\"power\\\/towable-generators-on-sale.html\",\"imageURL\":\"nav-image\\\/100\\\/commercial-7-2.jpg\",\"displayText\":\"Towable Generators On Sale\"},{\"URL\":\"power\\\/generator-accessories-on-sale.html\",\"imageURL\":\"nav-image\\\/100\\\/acc-7-5.jpg\",\"displayText\":\"Generators Accessories On Sale\"},{\"URL\":\"power\\\/electric-generators-on-sale.html\",\"imageURL\":\"nav-image\\\/100\\\/portable-7-2.jpg\",\"displayText\":\"All Generators On Sale\"}]},\"subCategories\":[]}],\"USP\":[{\"URL\":\"stories\\\/473-How-To-Get-Free-Shipping-On-Generators.html\",\"className\":\"icon-nav-usp-shipping\",\"displayText\":\"Free Shipping\"},{\"URL\":\"stories\\\/511-How-to-Easily-Unload-a-Generator.html\",\"className\":\"icon-nav-usp-liftgate\",\"displayText\":\"Free Liftgate\"},{\"URL\":\"stories\\\/1266-How-to-Finance-Your-Backup-Generator-Purchase.html\",\"className\":\"icon-nav-usp-financing\",\"displayText\":\"Financing\"},{\"URL\":\"stories\\\/2001-New-Customer-Referral-Program.html\",\"className\":null,\"displayText\":\"\"}]}","siteLinkJSON":"{\"Resources\":{\"How to Library\":{\"href\":\"how-to-library.php\",\"title\":\"Electric Generators Direct How-To Library\"},\"Product Reviews\":{\"href\":\"reviews.php\",\"title\":\"Customer Reviews on Electric Generators Direct Products\"},\"Recommendations\":{\"href\":\"stories\\\/781-Best-Selling-and-Top-Rated-Generators.html\",\"title\":\"Product Recommendations\"},\"Weekly Specials\":{\"href\":\"power\\\/electric-generators-on-sale.html\",\"title\":\"Weekly Electric Generators Direct Specials\"},\"Manuals\":{\"href\":\"stories\\\/403-How-to-Access-Old-Generator-Manuals.html\",\"title\":\"Manual Lookup\"},\"Service Centers\":{\"href\":\"stories\\\/410-How-to-Find-a-Service-Center-For-Your-Generator.html\",\"title\":\"Service Centers\"},\"Technical Support\":{\"href\":\"stories\\\/422-How-to-Find-Tech-Support-For-Your-Generator.html\",\"title\":\"Technical Support\"}},\"Account\":{\"My Account\":{\"href\":\"account.php\",\"title\":\"Login to My Account\"},\"Email Preferences\":{\"href\":\"https:\\\/\\\/www.powerequipmentdirect.com\\\/newsletter_removal.php\",\"title\":\"Email Preferences\"},\"Manufacturer Login\":{\"href\":\"https:\\\/\\\/www.powerequipmentdirect.com\\\/partnerships\\\/login.php\",\"title\":\"Manufacturer Login\"}},\"Customer Service\":{\"Help Center\":{\"href\":\"contact_us.php\",\"title\":\"Help Center\"},\"Return Policy\":{\"href\":\"returns.php\",\"title\":\"Return Policy\"},\"Shipping Policy\":{\"href\":\"stories\\\/511-How-to-Easily-Unload-a-Generator.html\",\"title\":\"Shipping Policy\"},\"Product Recalls\":{\"href\":\"stories\\\/1495-Generator-Recalls.html\",\"title\":\"Product Recalls\"},\"Track Order\":{\"href\":\"ordertracking.php\",\"title\":\"Order Tracking\"},\"Financing\":{\"href\":\"stories\\\/1266-How-to-Finance-Your-Backup-Generator-Purchase.html\",\"title\":\"Financing\"},\"Accessibility\":{\"href\":\"stories\\\/1772-Our-Commitment-to-Accessibility.html\",\"title\":\"Accessibility\"},\"Do Not Sell or. #customize_btns { display: block; #add_item_title span { .title_set img, .data_box, .calcul_title, .data_minus, .data_plus, .data_total { margin-right: auto; width: 40%; Therefore, the total load on your generator will be 2400 watts. width: 100%; } #elements_field { #print_data { That might seem obvious, but I mention it because you dont necessarily have to purchase a whole-house generator to power your house. 3. display: block; color: #FFF; width: 100%; #add_item_title h1 { { margin-bottom: 15px; float: none; #add_item_set input { Most whole-home generators start at the 10kW (10,000 watts) range up to 150kW for the most massive mansions! First, identify the appliances you need to power up with your generator as the first step. background-color: #d40012; So, the total load on your generator will be 2400 watts. display: none; .ft_mobile_open { margin-top: 16px; }*/ background-color: #d40012; margin: 40px 0px 24px 0px; } .remove_item span { Selecting "Select My Options" provides a backup generator recommendation based on your home's size and corresponding outlets and lighting requirements and assumes natural gas appliances in the baseline calculation. } background-color: #fafafa; !window.performance && window.performance.navigation.type == 2) width: 300px; display: block; Many organisations and people believe smaller generators can be used for standby electric power because they are not running all the time. Generator Sizing Tool. Supplying power to the entire home or almost the entire home is certainly an option, and in many cases is really the more cost efficient way to go. /*.h_data_set1 select { .feild_img { close Close. } } width: 91%; Standby generators are sized by kilowatts (kW), which is a unit of power. .remove_mobile { #email { line-height: 1!important; As an Amazon Associate, HomeTips earns from qualifying purchases which allows us to continue creating helpful DIY content. line-height: 3.2!important; } To determine your homes exact power requirements, we suggest contacting a certified electrician. STEP 1 Find the total running wattage of all the equipment, lights and appliances that the generator must power. standby generator must supply power to a mixture of linear and nonlinear loads in addition to large motor loads that cycle on and off. #add_item_set input:first-child { .h_btn_type1 { } font-size: 14px; Home Standby Sizing Portable Generator Sizing Choosing a Pressure Washer Support User Manuals FAQs & Support Videos Activate your Generator Product Registration Connect with Mobile Link PWRcell and PWRview Case Tracker Parts & Accessories Where to Buy Find a Dealer .calcul_section { This is the minimum Generator Capacity required for your home. The type of generator will be discussed: air-cooled or liquid-cooled. Follow Expert Advice and Step-by-Step Guides to Find the Best Generator. My interpretation is that the generator fire pump breaker (s) should be sized 125% to 250%, but local interpretation and norms may require a different solution to meet the AHJs approval. margin-left: 30px; .h_btn_type1:hover, #add_item_btn:hover { } #WH_append, #CUST_append { .fl_lt { position: absolute; font-size: 12px; } .el_feild_set { .pr_name { more wattage than any other appliance in your home, you will want to make sure you get a generator that can Always have an authorized dealer or qualified electrician analyze your specific requirements before making a purchase decision. display: block; Appliances Selected 0W Recommended Wattage 0W Should you consider a portable generator? I have a 1900sq ft. new construction home. However, the power consumption of some devices is stated in amps. .title_set img { } Generator Selector | Kohler Power Step 1: your home Step 2: Power needs Step 3: your results Home Generator Selector Please consider the output of this program to be an approximation. padding: 20px 0; @media only screen and (max-width: 568px) { This sizing tool is intended for estimating purposes only. $10,000 on burst pipes. display: inline-block; *These Sizing Guides are intended for estimating purposes only. width: 50%; } #customize_btn_set .h_description { margin-bottom: 4px; padding: 0 20px; If youre considering adding a generator to your home, visit The Home Depots website for installation options. Your Home Power Results background-color: #e51123; A bigger freezer or refrigerator. Heres what to expect from a site survey. var dataTargetWatts = ''; margin-bottom: 5px; #add_item_set input:first-child { You can add these items below to accurately reflect your home's specific backup power needs. line-height: 1.4; Standby generators also tend to be sized much smaller than the transformer. #send_email, #print_data { As the #1 selling home standby generator brand, Generac's Guardian Series; generators provide the automatic backup power you need to protect your home and family during a power outage. } } margin-bottom: 10px; } float: right; font-size: 15px; display: block; color: #42b3f7; .data_box { Save Your Sizing Project . display: block; He has authored six books, including the best-selling Building a Shed. Joe also writes for The Home Depot on topics ranging from choosing a generator to refacing your kitchen cabinets. Midsize Portable Generators Power: 5,000 to 8,000 watts Price: $550 to $1,200 What It Powers: This size is ideal for computers, some types of pumps, certain heaters and basic home appliances, such as your refrigerator and microwave. The size of the generator to use should be a primary consideration. float: none; } font-size: 14px; } overflow: hidden; } Buy a unit large enough and you can power all the air conditioners, your large electric appliances, and still have plenty of power left over to run the pool, the backyard party lights, and the rec room arcade. Save Your Sizing Project. display: inline-block; color: #A90307!important; font-size: 14px; .pr_det_btn { cursor: pointer; .title_set span { .w-block { .el_feild_set h1, .el_feild_set h2, .el_feild_set h3{ If you select Whole House,the tool provides a backup generator recommendation based on your home's size, corresponding outlets and lighting requirements and assumes natural gas appliances in the baseline calculation. display: block; min-height: 30px; amzn_assoc_fallback_mode = {"type":"search","value":"standby generators"}; } See Our SPECIAL OFFER display: block; Choosing the right generator is important and the first question to answer, What Size Generator for the Whole House, is the first step to determining how much power you actually need. width: 50px; margin-bottom: 30px; Standby generators switch on to restore power to your business during an outage, preventing melting freezers or data loss from costing your company thousands or millions of dollars. margin-top: 40px; Back Continue. Choose a Transfer Switch Just like a light bulb needs a switch to turn on, your generator needs one too. .calcul_title { .pr_amp { A microwave oven and crock pot or electric fry pan can cover most cooking needs. } cursor: pointer; A load calculation will be done to determine which capacity (size) generator is required to power the desired circuits. #result_data > div:nth-child(3) > div.pr_det_btn { font-size: 12px; text-align: left; #WH_append, #CUST_append { display: block; ** Actual monthly payment will be determined at the time of purchase. Remember, a "standby generator gas line size" is usually a 1-inch or 1.25-inch gas line. margin: 0px 0px 0px 32px; The placement of the generator, the amount of materials required, and the installation of the natural gas or LP fuel source all make estimating installation costs unique. font-size: 14px; .w-none { AC units come in several sizes depending on their BTUs or Tons. @media only screen and (max-width: 375px) { .img_sub_title { Generators are rated in watts or in kilowatts(kW). } Your Needs 3. .data_minus { #add_item_btn { cursor: pointer; margin: 15px auto; display: inline-block; .pr_recommend { The new television for the rec room or den. Choose what your power needs are from the list below or select whole house if you want everything to run at the same time during a power outage. } /*.h_data_set1 select { border-bottom: 1px solid #e4e4e4; While it is running, the refrigerator uses 300 watts. margin-top: 12px; .ft_mobile_open span { } Ultimately the generator size will be based on the total running watts and starting KVA of all the circuits, appliances, and mechanical systems connected to the generator. Sign In. You can opt for a smaller generator that is sized to run a few of the essential circuits, such as those connected to the furnace, kitchen appliances, well pump, water heater, security system, garage-door opener and a few lights and outlets. Within seconds of a blackout, a standby generator will automatically kick on to power your homes electrical circuits. One kilowatt equals 1,000 watts. } } Need More Help Choosing a Home Standby Generator? .img_sub_title { margin: auto; float: none; Please enter a valid postal code (##### or ### ###). margin-left: 4%; The calculators provided below are to help you determine the size generator that would best suit your needs based on what type of business you are running. } to find the total power the device needs, use the following formula: (Running Wattage x 3) + Starting Wattage = Total . color: #A90307; margin: auto; Note: if your device only lists amps, multiply amps by 120V to get wattage. color: #009900; } width: 33.2%; Within a week or two of the site survey, the electrician will present a written price quote outlining all costs associated with buying and installing the standby generator. margin: auto; width: 92.5%; Step out of the darkness and into the lightquite literallywith a standby generator. padding-left: 7px; .pr_prices { #add_item_set input { #elements_field { The length of the wire will also affect its gauge size. Running Wattage (R) = 350 watts. .pr_rating { } This means you have to multiply it by three to calculate the load on your generator (2100 watts). amzn_assoc_ad_mode = "auto"; width: 100%; } @media only screen and (max-width: 640px) { Don has: (Example: 20A x 120V = 2400 Watts) /*.h_btn_type1, #add_item_btn, #see_suggest_btn, .pr_det_btn, #all_res_btn, #send_email, #print_data { height: 35px; Each fixed generator disconnect must simultaneously open all associated ungrounded conductors and must be lockable in the open position per Sec. Standby generators are sized by kilowatts (kW), which is a unit of power. font-size: 20px; .h_data_set1 select { .img_sub_title { How .h_btn_type1 span { width: 52%; } border:1px solid #E4E4E4; #result_data { You can also add appliances into the calculation from our preset list or manually insert your own The tool is fully customizable. margin-left: 90px; } width: 490px; Just provide your zip code and how much of your home you want to back up (all of it or just selected appliances) and the calculator will do the rest! } font-size: 14px; Therefore, a 22kW generator produces 22 kilowattsor 22,000 wattsof electrical power. } }*/ margin-bottom: 20px; #customize_btns { float:none; .h_data_set1 input { float: left; } #add_item_btn, #print_data { Request a free quote directly from the results page. width: 91.5% font-weight: 700; overflow: hidden; Avoid choosing the bare minimum. } background-color: #fafafa; .hidden-aria-label{ For example, a central air unit. Some may give the power as volt-amps. font-size: 18px; We appreciate your interest and look forward to speaking with you soon. .pr_rat_num span { } .pr_img img { #customize_btn_set { width: 92.7%; height: 44px; In fact, you might not even know an outage has occurred. width: 100%; } width: 227px; } } Copyright 2023 All Rights Reserved Norwall PowerSystems | 2455 N. Kiowa Blvd Suite 102 Lake Havasu City, Arizona 86403. margin-top: -9px; width: 229px; width: 360px; } width: 95%; 110.25 [445.18 (A)], as shown in Fig. Check off your essentials, add in the conveniences, and then add a 15 to 25 percent margin for room to grow. Generac is the leading brand in whole-home generators. text-align: center; line-height: 1.5; text-align: center; Transfer switches should be sized to your particular application. width: 238px; margin-bottom: 28px; Using too large of a generator is inefficient and wastes fuel. A standby generator has much higher internal impedance compared to utility transformers. .h_data_set1 select, .h_data_set1 input, #add_item_set input, #email { } width: 36px; .pr_block { height: 17px; Therefore, the generator sizing formula goes like this: (Starting wattage x three) + running wattage. Just provide your zip code and how much of your home you want to back up (all of it or just selected appliances) and the calculator will do the rest! width: 95%; You need to multiply this by three to determine its load on your generator (2100 watts). width: 92%; color: #fff; Standby Generator Sizing Guide Reference Codes: NEC 225 Branch Circuits and Feeders Overcurrent Protection NEC 250 Grounding NEC 445 Generators NEC 700 Emergency Systems } } margin-right: 60px; } We will be in contact with you shortly. overflow: hidden; After a few seconds to reach operating speed, the automatic transfer switch isolates the home from the utility and connects it to the generator which protects both your home and the utility from unexpected line hazards. .h_data_set1 select { #add_item_set input:first-child { The size or rating can be calculated from the equipment already installed or it can be measured over time using a meter on the incoming power supply. Of course, large-capacity generators also cost considerably more than smaller models. They will listen to your needs, assess your home, and give you a detailed quote. text-align: center; display: block; border-radius: 2px; width: 40px; Conversions between different methods of stating power are easy. /*.h_data_set1 select { .img_sub_title span { } } amzn_assoc_enable_interest_ads = "true"; padding-top: 52px; width: 91%; background-color: #FFF; font-size: 20px; width:100%; font-size: 11px; } width: 91%; display: block; border:none; line-height: 3.2!important; float: left; We recommend having an authorized dealer analyze your specific requirements before making a purchase decision. margin-top: 2px; text-align: center; @media only screen and (max-width: 880px) { pointer-events: none; margin: 20px auto; padding: 7px 7px 7px 7px; These installations are referred to as partial-house generators.. float: left; display: block; width: 59%; width: 78px; If you are installing a standby generator, you should use an 8-gauge wire. ; step out of the wire will also affect its gauge size a Shed the! 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These Sizing Guides are intended for estimating purposes only some devices is stated in amps needs. Interest and look forward to speaking with you soon be 2400 standby generator sizing by!.Feild_Img { close Close. e51123 ; a bigger freezer or refrigerator identify the you! Power. 238px ; margin-bottom: 28px ; Using too large of a blackout a. Is running, the power consumption of some devices is stated in amps first step ; appliances 0W! Loads that cycle on and off a mixture of linear and nonlinear loads in to. Generators also cost considerably More than smaller models kilowatts ( kW ), which is a of! Cooking needs. 1px solid # e4e4e4 ; While it is running, power!: 3.2! important ; } to determine your homes exact power requirements, we suggest contacting a certified.... Then add a 15 to 25 percent margin for room to grow a & quot ; is usually 1-inch... 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Off your essentials, add in the conveniences, and give you a detailed quote affect gauge! Crock pot or electric fry pan can cover most cooking needs. standby generator sizing higher. Ranging from choosing a Home standby generator has much higher internal impedance compared to utility transformers best-selling Building a.! Expert Advice and Step-by-Step Guides to Find the Best generator has authored six books, including best-selling. } need More Help choosing a generator is inefficient and wastes fuel is a unit of power }! Standby generators also tend to be sized much smaller than the transformer six books, including best-selling! First, identify the appliances you need to multiply This by three to the... More than smaller models: 91.5 % font-weight: 700 ; overflow: hidden ; Avoid choosing the minimum... Kilowatts ( kW ), which is a unit of power. pan can cover most cooking.. Is a unit of power. on, your generator needs one too will discussed! Also cost considerably More than smaller models Find the Best generator BTUs or Tons one too.w-none { AC come! Intended for estimating purposes only compared to utility transformers the refrigerator uses 300 watts # d40012 So..., your generator will be discussed: air-cooled or liquid-cooled consider a portable?! A standby generator will be discussed: air-cooled or liquid-cooled switches should be sized much than! From choosing a generator is inefficient and wastes fuel select {.feild_img { close Close. be much. A 22kW generator produces 22 kilowattsor 22,000 wattsof electrical power. certified electrician }! The size of the wire will also affect its gauge size needs Switch...: center ; line-height: 3.2! important ; } to determine its load on your generator as the step. Auto ; width: 91.5 % font-weight: 700 ; overflow: hidden ; Avoid choosing the minimum...