{"CALC_DHW":{"lang":"en","text":{"next.plan":"✨ Plan the whole house","next.sub":"Opens the «my house» wizard with what you have entered.","rate.calc":"Rate this calculator","rate.article":"Rate this article","rate.star":"{n} of 5","rate.thanks":"Thank you!","rate.comment":"What could be better? (optional)","rate.send":"Send","rate.sent":"Thank you - we will read it.","dec":".","cur":"","f.len":"Pipe length from the water heater to the farthest tap, m","f.pipe":"Hot water pipe","p.ppr20":"PP-R PN 20 (SDR 6)","p.ppr16":"PP-R SDR 7.4 (PN 16, reinforced)","p.inner":"bore {id} mm","p.own":"other — own diameter below","f.uses":"How many times a day hot water is opened at the far tap after a pause","f.ins":"Pipe insulation, mm","f.insPh":"empty — minimum {mm} mm, 0 — bare","f.water":"Price of 1 m³ of water and sewerage (your currency)","f.heat":"Price of 1 kWh of water heating","f.heatHint":"Electric water heater — your electricity tariff; gas — less: gas price per kWh ÷ boiler efficiency. Leave prices empty to compare water and energy only.","f.elec":"Price of 1 kWh of electricity (pump, cable)","f.more":"Temperatures, timer, pump, own pipe","f.tHot":"Hot water leaving the heater, °C","f.tCold":"Cold mains water, °C","f.tRoom":"Air around the pipe, °C","f.timerH":"Timer: hours on per day","f.timerN":"Timer: starts per day","f.pumpW":"Pump power, W","f.tap":"Tap flow, L/min","f.idMm":"Own pipe: inner diameter, mm","f.odMm":"Own pipe: outer diameter, mm","r.vol":"The pipe to the far tap holds <b>{v} L</b> of water ({perM} L per metre). A {lpm} L/min tap brings hot water after <b>≈ {s} s</b>.","r.none":"Without recirculation <b>{l} L a day</b> goes down the drain — {m3} m³ of water and {kwh} kWh of heat a year.","r.noneCost":"That is ≈ {c} {cur} a year.","r.loss":"One metre of hot pipe at {t} °C loses: bare — {bare} W, with {min} mm insulation — {minW} W{now}.","r.lossNow":", with yours ({mm} mm) — {w} W","t.head":"Scheme|Water to drain, L/day|Heat, kWh/day|Electricity, kWh/day|Wait, s|Per year","s.none":"No recirculation","s.loop24":"Return loop, pump on all day (or thermostat)","s.loopTimer":"Return loop, pump on a timer","s.loopDemand":"Return loop, pump on demand (button, motion sensor)","s.valveTimer":"Valve under the far sink, no return pipe (timer)","s.cable":"Heat-trace cable on the pipe (timer)","a.small":"The pipe holds no more than {lim} L — the US DOE efficient-home limit below which recirculation is not needed: the wait is short.","a.overBranch":"The pipe holds more than {lim} L — the Ukrainian plumbing code (DBN V.2.5-64) does not allow that much water outside circulation in central hot water systems.","a.noAllDay":"A pump running all day is the most expensive way: the loop loses heat around the clock. Use a timer, thermostat or button.","a.saves":"The cheapest way to end the wait: <b>{best}</b> — ≈ {c} {cur} a year, {save} {cur} less than running water to the drain.","a.comfortCosts":"Here any recirculation costs more than the wasted water: the cheapest is <b>{best}</b>, ≈ {c} {cur} a year ({save} {cur} more). That is the price of comfort.","a.savesKwh":"The least energy among the ways that end the wait: <b>{best}</b> — {k} kWh a day.","a.bare":"Bare pipe: a loop or a cable on it mostly heats the walls. {min} mm of insulation cuts the loss from {bare} to {minW} W per metre.","a.cableIns":"The cable is counted on a pipe with {min} mm insulation — it is never fitted to a bare pipe.","a.demandWait":"On demand: press the button — about {s} s later the tap runs hot, and nothing goes down the drain.","note":"An estimate: the pipe wall and the heat to warm the pipe itself are not counted, losses are for a pipe indoors. The server does the maths — enter your own numbers.","e.bad":"Check the numbers in the form.","e.net":"No connection to the server — try again.","e.config":"The calculator is temporarily unavailable."},"op":"dhw_recirc","fields":{"lenM":{"type":"num","form":{"id":"dh-len","store":"dhLen","label":"f.len"}},"pipe":{"type":"str","form":{"id":"dh-pipe","store":"dhPipe","label":"f.pipe","control":"select"}},"usesPerDay":{"type":"num","form":{"id":"dh-uses","store":"dhUses","label":"f.uses"}},"insMm":{"type":"num","form":{"id":"dh-ins","store":"dhIns","label":"f.ins","ph":"f.insPh","value":""}},"waterUahM3":{"type":"num","form":{"id":"dh-water","store":"dhWater","label":"f.water"}},"heatUahKwh":{"type":"num","form":{"id":"dh-heat","store":"dhHeat","label":"f.heat","hint":{"key":"f.heatHint","margin":"2px 0 6px"}}},"elecUahKwh":{"type":"num","form":{"id":"dh-elec","store":"dhElec","label":"f.elec"}},"tHot":{"type":"num","form":{"id":"dh-thot","store":"dhTHot","label":"f.tHot","group":"more"}},"tCold":{"type":"num","form":{"id":"dh-tcold","store":"dhTCold","label":"f.tCold","group":"more"}},"tRoom":{"type":"num","form":{"id":"dh-troom","store":"dhTRoom","label":"f.tRoom","group":"more"}},"timerHours":{"type":"num","form":{"id":"dh-th","store":"dhTimerH","label":"f.timerH","group":"more"}},"timerStarts":{"type":"int","form":{"id":"dh-tn","store":"dhTimerN","label":"f.timerN","group":"more"}},"pumpW":{"type":"num","form":{"id":"dh-pump","store":"dhPump","label":"f.pumpW","group":"more"}},"tapLpm":{"type":"num","form":{"id":"dh-tap","store":"dhTap","label":"f.tap","group":"more"}},"idMm":{"type":"num","form":{"id":"dh-id","store":"dhId","label":"f.idMm","group":"more","value":""}},"odMm":{"type":"num","form":{"id":"dh-od","store":"dhOd","label":"f.odMm","group":"more","value":""}}},"defaults":{"lenM":12,"pipe":"ppr20-20","usesPerDay":8,"waterUahM3":"","heatUahKwh":"","elecUahKwh":"","tHot":60,"tCold":5,"timerHours":6,"timerStarts":2,"pumpW":7,"tapLpm":5.7,"tRoom":20},"pipes":[{"key":"ppr20-20","od":20,"id":13.2,"insMin":20},{"key":"ppr20-25","od":25,"id":16.6,"insMin":20},{"key":"ppr20-32","od":32,"id":21.2,"insMin":20},{"key":"ppr16-20","od":20,"id":14.4,"insMin":20},{"key":"ppr16-25","od":25,"id":18,"insMin":20},{"key":"ppr16-32","od":32,"id":23.2,"insMin":30}],"wizard":{"map":{},"limits":{"bedrooms":[1,6],"baths":[1,4],"area":[40,400],"fp":[3,60]}},"result":"saveYear"}}