https://www.3dwasp.com/en/3d-printed-house-gaia/#1540373870693-2-11544084517356Calculating with their thermal wall insulation number ~ 0,25 W/m2K and giving 0,5W/m2K for the tect and 2W/m2K for door/windows and an ambiental
( maritim) maximal temperature amplitude about 0°C-20°C= 20°K
Assumption : 30 sqm wall + 20 sqm tect + 7 sqm door/windows the peak room heat becomes :
630 Wattp
1. Option :
https://www.patentauction.com/patent.php?nb=11044 decrease to +- 400 Wattp/300 Wattp
Heating system : a.Infra-red heater
b. heat pump
Each one with C.O.P. ( or performance aequivalent) 10
electric heat need : 40 Wp/35 Wp
Infra-red optimized "C.O.P. 10" ( heat bulb, 2 seriell bulbs connection, frequency controler)
https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=20&ND=3&adjacent=true&locale=en_EP&FT=D&date=20110518&CC=CN&NR=201836980U&KC=U#or seriell connected OSMA Tech heater
Air-to-Air Heat pump with C.O.P 10 :
conventionell average C.O.P. 2,5 + improved magnetic motor + improved compressor
40 e-Wp room heating ( or cooling) demand :
electric storage and generating : a. DC or inverter-AC by " artificial photo or vent electric"
Zero heat ( grid) energy building for less than 100 Euros/ sqm construction costs
In the final 80'/90 the climate sector professionals thought that "solar active house" construction is more expensive than " solar passive house" construction !
THE BEST SOLUTION : FROM BOTH THE ADVANTAGES
Passive Shell ( cover called " house, home") : Nearly Zero Energy Building Standart
Active Shell/House climatization : Zero Energy Building Standart
Alternatively house prototype construction : cast stone
https://www.jovoto.com/projects/300house/ideas/12501?page=1&scope2=published&scope=prizesThis are demonstration prototype ideas,
20 sqm + morphing furniture ~ 40 sqm,
F.A.S.org/UN-habitat 32-38 sqm " starter family house" + morphing furniture 40 sqm ~ 100 sqm,
60,5 sqm ( ICON 3d print ) + morphing furniture ~ 150 sqm,
F.A.S.org/UN- habitat 72-78 sqm + morphing furniture ~ 180-195 sqm "living area"