greenhouse inside heating system: 1full avoid because positive pressure burning then cause stove temperature nor average,burning not whole through,have big smoke,and some place burn damage etc condition.Positive pressure multistage cycle exchange heat technology,let exchange heat distributor every place,let exchange heat more safe. 2 air fresh,temperature average,can control.comfortable and warm breeding environment. 3 stove furnace adopts anti-high temperature special cast steel pipe,seamless tube make of,this machine use second time heater,high thermal efficient,improve temperature very fast,hot wind very clean,semi-automatic control temperature,convenient to installation etc features. gardening heater: 1combination institute,convenient to assembly,flexible arrange room,not stand flower production space,improve temperature fast,supply hot temperature average,long life use 2 small volume,high thermal efficient,can many groups same time use,change tradition equipment bulky,thermal low,temperature not average etc defact 3 save evergy pipelines,improve 40% above,big reduce greenhouse product cost