{"product_id":"briggs-stratton-fortress-48-kw-liquid-cooled-aluminum-standby-generator","title":"Briggs \u0026 Stratton Fortress 48kW Liquid Cooled Standby Generator Single Phase","description":"\u003ch2 data-start=\"0\" data-end=\"57\"\u003eBriggs and Stratton 48 kW Fortress Standby Generator\u003c\/h2\u003e\n\u003cp data-start=\"58\" data-end=\"170\"\u003eLiquid-cooled, emergency-grade backup power that starts automatically in seconds (Auto Transfer Switch required)\u003c\/p\u003e\n\u003cp data-start=\"172\" data-end=\"585\"\u003eIf you are backing up a large home, a multi-building property, or a light commercial site, you need more than a typical air-cooled standby generator. The \u003cstrong data-start=\"326\" data-end=\"364\"\u003eBriggs and Stratton 48 kW Fortress\u003c\/strong\u003e is a \u003cstrong data-start=\"370\" data-end=\"422\"\u003eliquid-cooled, emergency-grade standby generator\u003c\/strong\u003e built to deliver serious power with stable voltage for modern electronics, quieter 1800 RPM operation, and a warranty that takes a lot of stress out of ownership.\u003c\/p\u003e\n\u003cp data-start=\"587\" data-end=\"708\"\u003eThis is the kind of system you install once and count on when storms, outages, and grid issues show up at the worst time.\u003c\/p\u003e\n\u003chr data-start=\"710\" data-end=\"713\"\u003e\n\u003ch2 data-start=\"715\" data-end=\"769\"\u003eWhat the Fortress 48 kW does when the power goes out\u003c\/h2\u003e\n\u003cp data-start=\"771\" data-end=\"846\"\u003eWith an installed \u003cstrong data-start=\"789\" data-end=\"824\"\u003eautomatic transfer switch (ATS)\u003c\/strong\u003e, the Fortress system:\u003c\/p\u003e\n\u003cul data-start=\"848\" data-end=\"1042\"\u003e\n\u003cli data-start=\"848\" data-end=\"876\"\u003eDetects utility power loss\u003c\/li\u003e\n\u003cli data-start=\"877\" data-end=\"914\"\u003eStarts automatically within seconds\u003c\/li\u003e\n\u003cli data-start=\"915\" data-end=\"959\"\u003eTransfers your building to generator power\u003c\/li\u003e\n\u003cli data-start=\"960\" data-end=\"990\"\u003eMonitors utility restoration\u003c\/li\u003e\n\u003cli data-start=\"991\" data-end=\"1042\"\u003eTransfers back to utility power when it is stable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo manual steps. No cords. No late-night scramble.\u003c\/p\u003e\n\u003cp data-start=\"1096\" data-end=\"1194\"\u003eImportant: \u003cstrong data-start=\"1107\" data-end=\"1194\"\u003eThis generator requires an automatic transfer switch. Transfer switch not included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1196\" data-end=\"1199\"\u003e\n\u003ch2 data-start=\"1201\" data-end=\"1241\"\u003eBig, steady power for real-world loads\u003c\/h2\u003e\n\u003ch3 data-start=\"1243\" data-end=\"1277\"\u003e48,000 watts of standby output\u003c\/h3\u003e\n\u003cul data-start=\"1278\" data-end=\"1387\"\u003e\n\u003cli data-start=\"1278\" data-end=\"1305\"\u003eRated output: \u003cstrong data-start=\"1294\" data-end=\"1305\"\u003e48,000W\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1306\" data-end=\"1341\"\u003eSingle-phase output: \u003cstrong data-start=\"1329\" data-end=\"1341\"\u003e120\/240V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1342\" data-end=\"1364\"\u003eRated amps: \u003cstrong data-start=\"1356\" data-end=\"1364\"\u003e200A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1365\" data-end=\"1387\"\u003eFrequency: \u003cstrong data-start=\"1378\" data-end=\"1387\"\u003e60 Hz\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1389\" data-end=\"1548\"\u003eThat level of output is designed for larger electrical demands where you want strong coverage across critical loads and comfort loads, not just a few circuits.\u003c\/p\u003e\n\u003chr data-start=\"1550\" data-end=\"1553\"\u003e\n\u003ch2 data-start=\"1555\" data-end=\"1605\"\u003eLiquid-cooled 4.3L 6-cylinder engine at 1800 RPM\u003c\/h2\u003e\n\u003cp data-start=\"1607\" data-end=\"1717\"\u003eAt the heart of the Fortress is a \u003cstrong data-start=\"1641\" data-end=\"1692\"\u003e4.3L industrial 6-cylinder liquid-cooled engine\u003c\/strong\u003e running at \u003cstrong data-start=\"1704\" data-end=\"1716\"\u003e1800 RPM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhy that matters:\u003c\/p\u003e\n\u003cul data-start=\"1738\" data-end=\"1977\"\u003e\n\u003cli data-start=\"1738\" data-end=\"1823\"\u003eLower RPM operation supports better long-run durability than high-RPM standby units\u003c\/li\u003e\n\u003cli data-start=\"1824\" data-end=\"1902\"\u003eLiquid cooling helps maintain stable operating temps during extended outages\u003c\/li\u003e\n\u003cli data-start=\"1903\" data-end=\"1977\"\u003eQuieter operation for its class, especially compared to high-RPM designs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1979\" data-end=\"2043\"\u003eThis is a serious engine platform built for standby reliability.\u003c\/p\u003e\n\u003chr data-start=\"2045\" data-end=\"2048\"\u003e\n\u003ch1 data-start=\"2050\" data-end=\"2082\"\u003eRuns on natural gas or propane\u003c\/h1\u003e\n\u003cp data-start=\"2084\" data-end=\"2173\"\u003eThe Fortress 48 kW can be configured for \u003cstrong data-start=\"2125\" data-end=\"2145\"\u003enatural gas (NG)\u003c\/strong\u003e or \u003cstrong data-start=\"2149\" data-end=\"2172\"\u003eliquid propane (LP)\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-start=\"2175\" data-end=\"2251\"\u003e\n\u003cli data-start=\"2175\" data-end=\"2213\"\u003eConnect to your home’s NG supply, or\u003c\/li\u003e\n\u003cli data-start=\"2214\" data-end=\"2251\"\u003eConnect to a properly sized LP tank\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFuel planning is a major part of any large standby setup. Here are the published consumption numbers so you can plan line sizing and storage correctly.\u003c\/p\u003e\n\u003ch3 data-start=\"2406\" data-end=\"2426\"\u003eFuel consumption\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong data-start=\"2428\" data-end=\"2443\"\u003eNatural Gas\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2444\" data-end=\"2498\"\u003e\n\u003cli data-start=\"2444\" data-end=\"2470\"\u003e50% load: \u003cstrong data-start=\"2456\" data-end=\"2470\"\u003e328 ft³\/hr\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2471\" data-end=\"2498\"\u003e100% load: \u003cstrong data-start=\"2484\" data-end=\"2498\"\u003e511 ft³\/hr\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-start=\"2500\" data-end=\"2516\"\u003ePropane (LP)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2517\" data-end=\"2573\"\u003e\n\u003cli data-start=\"2517\" data-end=\"2544\"\u003e50% load: \u003cstrong data-start=\"2529\" data-end=\"2544\"\u003e3.68 gal\/hr\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2545\" data-end=\"2573\"\u003e100% load: \u003cstrong data-start=\"2558\" data-end=\"2573\"\u003e5.82 gal\/hr\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2575\" data-end=\"2578\"\u003e\n\u003ch2 data-start=\"2580\" data-end=\"2619\"\u003eClean power for sensitive electronics\u003c\/h2\u003e\n\u003cp data-start=\"2621\" data-end=\"2848\"\u003eToday’s homes and businesses have a lot of expensive boards and devices that do not like unstable power. The Fortress includes a \u003cstrong data-start=\"2750\" data-end=\"2792\"\u003ecomputer-friendly brushless alternator\u003c\/strong\u003e with \u003cstrong data-start=\"2798\" data-end=\"2830\"\u003eautomatic voltage regulation\u003c\/strong\u003e, helping protect:\u003c\/p\u003e\n\u003cul data-start=\"2850\" data-end=\"3005\"\u003e\n\u003cli data-start=\"2850\" data-end=\"2897\"\u003eNetwork gear (modems, routers, access points)\u003c\/li\u003e\n\u003cli data-start=\"2898\" data-end=\"2930\"\u003eComputers and office equipment\u003c\/li\u003e\n\u003cli data-start=\"2931\" data-end=\"2961\"\u003eSecurity systems and cameras\u003c\/li\u003e\n\u003cli data-start=\"2962\" data-end=\"3005\"\u003eSmart appliances and modern HVAC controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3007\" data-end=\"3067\"\u003eClean, regulated output matters just as much as total watts.\u003c\/p\u003e\n\u003chr data-start=\"3069\" data-end=\"3072\"\u003e\n\u003ch2 data-start=\"3074\" data-end=\"3151\"\u003eSmarter control with the Briggs and Stratton AMF Controller (UL Recognized)\u003c\/h2\u003e\n\u003cp data-start=\"3153\" data-end=\"3252\"\u003eThe built-in \u003cstrong data-start=\"3166\" data-end=\"3184\"\u003eAMF controller\u003c\/strong\u003e gives you visibility and control without making things complicated:\u003c\/p\u003e\n\u003cul data-start=\"3254\" data-end=\"3398\"\u003e\n\u003cli data-start=\"3254\" data-end=\"3300\"\u003eEasy-to-read alpha-numeric scrolling display\u003c\/li\u003e\n\u003cli data-start=\"3301\" data-end=\"3333\"\u003eMonitors diagnostic conditions\u003c\/li\u003e\n\u003cli data-start=\"3334\" data-end=\"3356\"\u003eDisplays fault codes\u003c\/li\u003e\n\u003cli data-start=\"3357\" data-end=\"3398\"\u003eSimple weekly exercise-cycle scheduling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3400\" data-end=\"3512\"\u003eYou get the confidence of knowing the unit is ready and the clarity to troubleshoot quickly if an alert appears.\u003c\/p\u003e\n\u003chr data-start=\"3514\" data-end=\"3517\"\u003e\n\u003ch2 data-start=\"3519\" data-end=\"3557\"\u003eBuilt for weather, built for service\u003c\/h2\u003e\n\u003ch3 data-start=\"3559\" data-end=\"3601\"\u003eCorrosion-resistant aluminum enclosure\u003c\/h3\u003e\n\u003cp data-start=\"3602\" data-end=\"3704\"\u003eThe enclosure is designed to hold up in harsh climates and protect the generator from extreme weather.\u003c\/p\u003e\n\u003ch3 data-start=\"3706\" data-end=\"3742\"\u003eConvenient service access points\u003c\/h3\u003e\n\u003cp data-start=\"3743\" data-end=\"3876\"\u003eRoutine maintenance should not require unnecessary disassembly. Service access points are designed to reduce service time and hassle.\u003c\/p\u003e\n\u003ch3 data-start=\"3878\" data-end=\"3908\"\u003ePre-installed block heater\u003c\/h3\u003e\n\u003cp data-start=\"3909\" data-end=\"4063\"\u003eCold starts can be where standby systems struggle. A \u003cstrong data-start=\"3962\" data-end=\"3992\"\u003epre-installed block heater\u003c\/strong\u003e supports easier cold-weather starting and more consistent performance.\u003c\/p\u003e\n\u003ch3 data-start=\"4065\" data-end=\"4092\"\u003eTurnkey extras included\u003c\/h3\u003e\n\u003cp data-start=\"4093\" data-end=\"4112\"\u003eThis unit includes:\u003c\/p\u003e\n\u003cul data-start=\"4113\" data-end=\"4180\"\u003e\n\u003cli data-start=\"4113\" data-end=\"4144\"\u003e\u003cstrong data-start=\"4115\" data-end=\"4144\"\u003eAutomatic battery charger\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"4145\" data-end=\"4163\"\u003e\u003cstrong data-start=\"4147\" data-end=\"4163\"\u003eBlock heater\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"4164\" data-end=\"4180\"\u003e\u003cstrong data-start=\"4166\" data-end=\"4180\"\u003eHour meter\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4182\" data-end=\"4223\"\u003eLess piecing together. More ready-to-run.\u003c\/p\u003e\n\u003chr data-start=\"4225\" data-end=\"4228\"\u003e\n\u003ch2 data-start=\"4230\" data-end=\"4262\"\u003eSound level and physical specs\u003c\/h2\u003e\n\u003cul data-start=\"4264\" data-end=\"4552\"\u003e\n\u003cli data-start=\"4264\" data-end=\"4294\"\u003eNoise level: \u003cstrong data-start=\"4279\" data-end=\"4294\"\u003e67 dB at 7m\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4295\" data-end=\"4318\"\u003eWeight: \u003cstrong data-start=\"4305\" data-end=\"4318\"\u003e1,635 lbs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4319\" data-end=\"4366\"\u003eDimensions: \u003cstrong data-start=\"4333\" data-end=\"4366\"\u003e91 in L x 39.4 in W x 41 in H\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4367\" data-end=\"4392\"\u003eEnclosure: \u003cstrong data-start=\"4380\" data-end=\"4392\"\u003eAluminum\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4393\" data-end=\"4421\"\u003eCooling: \u003cstrong data-start=\"4404\" data-end=\"4421\"\u003eLiquid-cooled\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4422\" data-end=\"4454\"\u003eCircuit breaker size: \u003cstrong data-start=\"4446\" data-end=\"4454\"\u003e200A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4455\" data-end=\"4475\"\u003eUL listed: \u003cstrong data-start=\"4468\" data-end=\"4475\"\u003eYes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4476\" data-end=\"4501\"\u003eCARB compliant: \u003cstrong data-start=\"4494\" data-end=\"4501\"\u003eYes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4502\" data-end=\"4524\"\u003eMade in USA: \u003cstrong data-start=\"4517\" data-end=\"4524\"\u003eYes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4525\" data-end=\"4552\"\u003eGrade type: \u003cstrong data-start=\"4539\" data-end=\"4552\"\u003eEmergency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4554\" data-end=\"4557\"\u003e\n\u003ch3 data-start=\"4559\" data-end=\"4593\"\u003eRequirements (do not skip these)\u003c\/h3\u003e\n\u003cp data-start=\"4595\" data-end=\"4630\"\u003eTo install and operate as designed:\u003c\/p\u003e\n\u003cul data-start=\"4632\" data-end=\"4794\"\u003e\n\u003cli data-start=\"4632\" data-end=\"4687\"\u003e\u003cstrong data-start=\"4634\" data-end=\"4687\"\u003eAutomatic transfer switch required (not included)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"4688\" data-end=\"4742\"\u003e\u003cstrong data-start=\"4690\" data-end=\"4742\"\u003eRequires 775 CCA starting battery (not included)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"4743\" data-end=\"4794\"\u003e\u003cstrong data-start=\"4745\" data-end=\"4794\"\u003eConcrete mounting pad required (not included)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4796\" data-end=\"4938\"\u003eThis is a heavy, high-output standby generator. A professional installation is standard for safety, code compliance, and proper fuel delivery.\u003c\/p\u003e\n\u003chr data-start=\"4940\" data-end=\"4943\"\u003e\n\u003ch1 data-start=\"4945\" data-end=\"4955\"\u003eWarranty\u003c\/h1\u003e\n\u003cul data-start=\"4957\" data-end=\"5024\"\u003e\n\u003cli data-start=\"4957\" data-end=\"4989\"\u003eConsumer warranty: \u003cstrong data-start=\"4978\" data-end=\"4989\"\u003e6 years\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4990\" data-end=\"5024\"\u003eCommercial warranty: \u003cstrong data-start=\"5013\" data-end=\"5024\"\u003e2 years\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"5026\" data-end=\"5147\"\u003eThe 6-year coverage includes \u003cstrong data-start=\"5055\" data-end=\"5083\"\u003eparts, labor, and travel\u003c\/strong\u003e, which is a major advantage for a generator in this size class.\u003c\/p\u003e\n\u003chr data-start=\"5149\" data-end=\"5152\"\u003e\n\u003ch3 data-start=\"5154\" data-end=\"5169\"\u003eBest fit uses\u003c\/h3\u003e\n\u003cp data-start=\"5171\" data-end=\"5210\"\u003eThe Fortress 48 kW is a strong fit for:\u003c\/p\u003e\n\u003cul data-start=\"5212\" data-end=\"5459\"\u003e\n\u003cli data-start=\"5212\" data-end=\"5260\"\u003eLarge homes with significant electrical demand\u003c\/li\u003e\n\u003cli data-start=\"5261\" data-end=\"5349\"\u003eProperties with multiple critical systems (security, networking, pumps, refrigeration)\u003c\/li\u003e\n\u003cli data-start=\"5350\" data-end=\"5411\"\u003eLight commercial buildings that need reliable standby power\u003c\/li\u003e\n\u003cli data-start=\"5412\" data-end=\"5459\"\u003eFarms and ranches that cannot afford downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"5461\" data-end=\"5464\"\u003e\n\u003ch2 data-start=\"5466\" data-end=\"5480\"\u003eBottom line\u003c\/h2\u003e\n\u003cp data-start=\"5481\" data-end=\"5822\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe \u003cstrong data-start=\"5485\" data-end=\"5523\"\u003eBriggs and Stratton 48 kW Fortress\u003c\/strong\u003e is a high-capacity, liquid-cooled standby generator built for automatic backup power, clean output for sensitive electronics, and long-term confidence backed by an industry-leading warranty. If you want a serious standby system that starts fast and runs steady, this is the right tier of equipment.\u003c\/p\u003e\n\u003ch3\u003eResource\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eManuals:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0964\/0984\/6082\/files\/Briggs_Standby_Sizing.pdf?v=1764228121\" target=\"_blank\"\u003eGenerator Sizing Chart\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0964\/0984\/6082\/files\/briggs-stratton-ec4415cec73e6f8cc0884cabc6fa2e4b.pdf?v=1764228121\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0964\/0984\/6082\/files\/briggs-stratton-043f3c457a17abf1881c24f378f84c09.pdf?v=1764228121\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0964\/0984\/6082\/files\/briggs-stratton-2cffca94b52cd6520a4f321326e8c423.pdf?v=1764228121\" target=\"_blank\"\u003eController Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWarranty \u003c\/h3\u003e\n\u003cp\u003eEnergy Systems Central is an authorized dealer of BAS Energy Systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0964\/0984\/6082\/files\/BAS_Energy_Solutions_Warranty_2024_1.pdf?v=1764225121\" rel=\"noopener\" target=\"_blank\"\u003eWarranty Document\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Briggs \u0026 Stratton","offers":[{"title":"Default Title","offer_id":51588366172482,"sku":"76850","price":23236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/0984\/6082\/files\/76860.jpg?v=1765275513","url":"https:\/\/energysystemscentral.com\/products\/briggs-stratton-fortress-48-kw-liquid-cooled-aluminum-standby-generator","provider":"Energy Systems Central","version":"1.0","type":"link"}