BTU Calculator (AC & Kutonhora)
Kukura kwemhepo conditioner kana heater muBTU kubva kunzvimbo yeimba, nharaunda, mhepo, zuva uye kugara.
Zvinyorwa zvinogadziridzwa paunenge uchinyora.
Nezve iyi kalkulator
A BTU (British Thermal Unit) is a unit of heat, and air conditioners and heaters are rated by how many BTU per hour they can move. This calculator estimates the capacity a room actually needs so you neither undersize the unit (which then runs flat out and never keeps up) nor oversize it (which short-cycles, wastes energy and leaves the room clammy). For cooling it starts from the U.S. EPA rule of thumb of about 20 BTU/h per square foot, then adjusts for ceiling height, sun exposure, occupancy and heat-producing rooms. For heating it scales the floor area by a BTU-per-square-foot factor that rises with a colder climate.
The cooling adjustments are: scale by ceiling height relative to the standard 8 ft; subtract about 10% for a heavily shaded room or add 10% for a very sunny one; add roughly 600 BTU for each occupant beyond the first two; and add about 4,000 BTU for a kitchen, where appliances throw off heat. As a worked example, a 300 sq ft moderate-climate living room with standard ceilings, average sun and two people needs about 300 × 20 = 6,000 BTU/h — a typical window-unit size. Heating that same room in a cold climate uses a factor near 60 BTU/sq ft, or roughly 18,000 BTU/h.
The result is also converted to tons and kilowatts and rounded up to a sensible unit size, using 1 ton of cooling = 12,000 BTU/h and 1 kW ≈ 3,412 BTU/h. So a 6,000 BTU need is about half a ton or 1.76 kW. These are planning estimates: a proper HVAC load calculation (Manual J) also weighs insulation, window quality, air leakage and local climate data, so treat the number as a well-informed starting point for shopping.
Zvimwe zvinobvunzwa zvakanyanya
Maitiro ekuisa BTUs muzvivakwa zvangu?
Kuti ugadzire kutonhora, zvinoda 20 BTU paawa pamita imwe chete, saka 300 sq ft imba inofanira kupihwa 6,000 BTU. Kutonhora kunoda zvakawanda - kubva pa25 BTU/sq ft munguva yakaoma kusvika pa60 munguva yakaoma.
Sei zuva, vanhu uye ma Kitchens anochinja nhamba?
A yakanakisisa yakadzikama bhokisi anowedzera pamusoro 10% uye shaded imwe anobvisa 10%.Every mugari pamusoro maviri anowedzera pamusoro 600 BTU, uye chikafu anowedzera pamusoro 4,000 BTU nekuti zvicherwa vanopa off tembiricha.
Maitiro ekushandura BTU kuti ton kana kilowatt?
One ton of air-conditioning imwechete 12,000 BTU paawa, uye 1 kilowatt ndiro pamusoro 3,412 BTU / h. So 12,000 BTU chikwata ndiro 1 ton kana pamusoro 3.5 kW yekutonhora.
Ichi chimiro chechivharo chinochinja BTU ini ndinoda?
Yeah. The kufungidzira iri scaled pamusoro standard 8 ft chivharo, saka 10 ft chivharo anowedzera chinodiwa ne pamusoro 25% nekuti pane zvakawanda zvemhepo volume kuti condition. Set chivharo upamhi mu advanced options kuti account for it.
Iva sei kuti nditenge AC unit ine simba rakawanda?
Yeah. A oversized unit inopisa mhepo nekukurumidza asi inodzima mushure mekunge yabvisa kufema kwakakwana, ichisiya bhokisi rakaoma uye rakaoma uye richiparadza simba kuburikidza neshort-cycling. Izvi ndizvo zvinoita kuti iyi tool iite masize ekumhanyisa kupfuura kungotora iyo yakakura kwazvo unit.
Kupisa kunodawo zvakawanda BTUs kupfuura kutonhora kweimba imwecheteyo?
Kutonhora kunotanga pa20 BTU/sq ft, asi kutonhora kunotanga pa25 BTU/sq ft munguva yakaoma kusvika pa60 BTU/sq ft munguva yakaoma - saka munguva yakaoma, imba inogona kunge ichida nguva dzakawanda dzekutonhora.
Ndinogona here kuisa nzvimbo yechivakwa mumita ezviuru?
Kana ukachinja nzvimbo yezviyero kuita mamita emakwai, calculator ichashandura zviyero zvemukati (1 m² ≈ 10.76 sq ft) usati washandisa BTU-per-square-foot rules, kuitira kuti ugone kushanda nechimwe chiyero chaunoshandisa muzvirongwa zveimba yako.
API — kushandisa iyi kalkulator kubva code
Nhare iyi calculator semahara JSON endpoint - hapana chikuru zvinodiwa. Kutumira nzvimbo mavara pasi separameter query kana JSON. Chii zvachose chaunoisa kunze chinoshandisa default iyo peji iri rakasviba nayo; parameter isiri yechokwadi inonzi 400, uye haisi zero. Tora yakazara API docs →
Endpoint
GET https://calculator.free/api/v1/btu/curl
curl "https://calculator.free/api/v1/btu/?mode=cooling&units=sqft&area=300&climate=moderate"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/btu/?" + new URLSearchParams({
"mode": "cooling",
"units": "sqft",
"area": "300",
"climate": "moderate"
}));
const data = await r.json();
console.log(data.results);Zviratidzo zvemubvunzo ndezvekufungidzira kwechinangwa chekudzidzisa chete, kwete zvemari, zvehutano kana zvemari.