BTU Calculator (AC & qaboojiyaha)
Size ah hawada conditioner ama heater in BTU ka goobta qolka, cimilada, qorraxda iyo fasaxyada.
Natiijooyinka cusbooneysiinta sida aad ku qorto.
Ku saabsan Kalkaaliyahan
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.
Su'aalaha badanaa la isweydiiyo
Sidee badan BTU ma aan u baahanahay in mitir oo laba jibbaaran?
Si aad u qaboojiso, ku saabsan 20 BTU saacaddii mitir oo laba jibbaaran ah waa meesha ugu horeysa ee caadiga ah, sidaas darteed 300 sq ft qolka u baahan yahay in ka badan 6,000 BTU. kulul u baahan yahay in ka badan - ka 25 BTU / sq ft in cimilada kulul ilaa 60 in mid ka mid ah qabow.
Sidee qorraxda, dadka iyo cuntada u beddelaan tirada?
A qol aad u qorraxda ku kordhiya ku saabsan 10% iyo mid hoos u mid ka soo saaro 10%. Qof kasta oo ka badan laba ku kordhiya ku dhow 600 BTU, iyo cuntada ku kordhiya ku saabsan 4,000 BTU sababtoo ah qalabka siiyaan kulul off.
Sidee BTU u beddelaan tan ama kilowatts?
Mid tan oo hawada-qaabeynta la mid ah 12,000 BTU saacaddii, iyo 1 kilowatt waa ku saabsan 3,412 BTU / h. Sidaas 12,000 BTU unit waa 1 tan ama ku dhowaad 3.5 kW of qaboojiyaha.
Ma dhererka daaqadda u beddeli kartaa BTU aan u baahanahay?
Haa. Qiimaha la qiimeeyay waa la ballaadhiyay ka dhanka ah 8 ft silig caadi ah, sidaas darteed 10 ft silig kor u qaadi kara baahida ah oo ku saabsan 25% sababtoo ah waxaa jira hawada badan oo sicir ah si ay u xaaladda. Set silig sare ee doorashooyinka horumarsan si ay u xisaabtaan u.
Ma xun tahay in la iibsado mid ka badan AC unit?
Haa. A unit oversized cools hawada deg deg ah laakiin off ka hor inta uusan ka saaro biyo badan, ka tagay qolka qabow iyo clammy iyo kharashyada tamarta iyada oo loo marayo gaaban-ciyaar. Waa sababta qalabkan sizes in la qaado ka badan oo kaliya dooran oo kaliya ugu weyn ee unit.
Ma qaboojiyaha u baahan tahay in ka badan BTU ka qabow ee qolka la mid ah?
Baakadaha ku dhow 20 BTU / sq ft, halka kulul ee kala duwan oo ka mid ah 25 BTU / sq ft in cimilada kulul ilaa 60 in mid qabow - sidaas daraaddeed qolka cimilada kulul ayaa u baahan kartaa dhowr jeer oo awoodda kulul.
Ma ku gali karaa goobta qolka ee mitir laba jibbaaran?
Haa. Isku beddel qaybaha meelaha in mitir oo laba jibbaaran iyo xisaabinta ku beddelo gudaha (1 m² ≈ 10.76 sq ft) ka hor intaan la isticmaalin BTU-per-square-foot sharciyada, si aad u shaqeyso oo ku saabsan mid kasta oo ka mid ah qaybaha aad floorplan isticmaalaya.
API — isticmaal xisaabinta ka code
Wici xisaabinta sida free JSON endpoint - key ma loo baahan yahay. Dib u soo dir qiimaha goobta hoos ku qoran sida parameters su'aal ama JSON. Wax kasta oo aad ka maqan tahay isticmaalaa default la mid ah ee boggani waa hore loo buuxiyey la; parameter aan la aqoon waa 400, marnaba ma aha zero maqan. Akhri dhammaan API xuquuqda →
Xarafka
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);Natiijooyinka waa tirakoobka loogu talagalay tilmaamaha guud oo keliya, maaha dhaqaale, caafimaad ama talo bixin canshuur.