Air conditioning Resonator ( heating, cooling) : heating power for 20 sqm living area in average 80 Watt
http://translationportal.epo.org/emtp/translate/?ACTION=description-retrieval&COUNTRY=DE&ENGINE=google&FORMAT=docdb&KIND=U1&LOCALE=en_EP&NUMBER=202008007815&OPS=ops.epo.org%2F3.2&apikey=TSMqTfrVAvNtryGI8Qlfbozj8DnAGlqJ&SRCLANG=de&TRGLANG=en 1 Watth electric ~ 1,8 Watth PE energy-mix in Germany
Average. 80 Watt consume/20 sqm = Solar Passive/Active house Energy Standart
= 7,2 Watt PE/ sqm. < 10 Watt PE/ sqm
Panel + controler production costs ?
10-15 Euros/sqm living area would be attractive as endconsumer price !
Heat power performance improveable ?
heating power for 20 sqm living area 100 Watt : caloric output ~ 500 Watt
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#+
https://patents.google.com/patent/US5130608A/en as " power controler"
+
https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030424&DB=EPODOC&locale=en_EP&CC=US&NR=2003077078A1&KC=A1&ND=4#[0015]

this heating element is in production and sell in China
Performance calculation : before 500 caloric Watt output for 100 electric Watt input
optimized :
500 caloric Watt output by 75 Watt Bei Wei Wu IR-lamp and 37,5 Watt net electric "power controller" input
(the "power controller" before 100 W after : 4+8 W ratio is light - not heat related ! )
The second I estimate with 100 Euros the heater and 37,5 Euros the " power controller" as endconsumer price ! Only heating, with the "Resonator" also cooling option ! ( for example with solar cells )
In the southern Europe with 0°- 20° = 20 K temperature amplitude an 80 sqm apartment( conventionalconstruction) needs 4000 Watt caloric heat : 4000 W/ 500 W Zhang-heater output = 8 heater
= 2 heater per 20 sqm. !
In -20°/ + 20° = 40 K temperature amplitude = 4 Zhang heater per 20 sqm needed
Alternatively :
optimized
https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=0&ND=3&adjacent=true&locale=en_EP&FT=D&date=19850416&CC=US&NR=4511787A&KC=A#1 Sibert heat pipe/ tube caloric 2000 Watt ( not 2x 1500 W comparison as in the publication written) caloric output ~ 4x Zhang heater
Sibert heat pipe/ tube input :
A. not 1 but two - seriell connected - Bei Wei Wu lamps
B. with pipe/tube inside coating
C. and "power controler" :
optimized 200 electric Watt input from before 660 W for 2000 Watt caloric output "aequivalent"
Endconsumer price estimation : 100 Euros max.the pipe/tube heater and 50 Euros the " power controler"
https://www.resoheat.com/ R.O.I. : 7,5 years
Only room heating related : optimized Sibert heat pipe/ tube R.O.I. : 1 year 150 sqm living area in Germany ~ 7-8 heat Sibert pipes/ tubes
Hot water generation :
https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=0&ND=3&adjacent=true&locale=en_EP&FT=D&date=20130110&CC=US&NR=2013011125A1&KC=A1# [0010] with same optimation process ( lamps,connection,coating,controler)
Modern construction :
https://www.3dwasp.com/en/3d-printed-house-gaia/With the given insulation numbers I estimate for southern Europe : 500 Wp/20 sqm
+
https://www.patentauction.com/patent.php?nb=11044= E. U. 2020 > 50 sqm NEARLY ZERO ENERGY BUILDING STANDART
+ Resonator/Zhang-heater = SOLAR PASSIVE/ACTIVE BUILDING STANDART ( also in Northern Europe)
For under 100 Euros/sqm construction costs. !
Next step : the under 50 Euros/sqm SOLAR PASSIVE/ACTIVE BUILDING STANDART
https://www.jovoto.com/projects/300house/ideas/12501?page=1&scope2=published&scope=prizes+ wind generator/ Solar cell array : NET ZERO ENERGY BUILDING STANDART
for under 100 Euros/ sqm !
For 150 Euros/sqm : ZERO ENERGY BUILDING STANDARTincluded room air conditioning, warm water, electric appliances energy source " in situ " !
A. ultra- low electric appliances energy need per day : 0,8 KWh + heat source ( wind/ solar)
https://mtbest.net/energy_efficiency.htmlB. Before up to 18 KWh : intelligent and economic household up to 3 KWh per day + heat source
https://translate.google.com/translate?hl=de&sl=de&tl=en&u=https%3A%2F%2Fwww.oeko-energie.de%2Fenergieberatung%2F This is the official E.U.-"construction engineering" program for the next two dekades(- 2040) in execution !
Water plant "in situ"
white water : Air2water/Sanakvo ( summer)/ fog&rain collector( winter)
Grey water to white water
https://www.jugend-forscht.de/projektdatenbank/computergesteuerte-abwasserreinigung.html or Labuntog
https://www.google.com/search?q=ernesto+labuntog&ie=utf-8&oe=utf-8&client=firefox-b-mor
https://www.aqsolutions.org/ Sanita/closet : no black water producing
but " compost toilet" like modern society life culture in Sweden
or canadian (re)-local/locate-able flexible lifestyle habitations
https://www.google.com/search?q=habitaflex&ie=utf-8&oe=utf-8&client=firefox-b-mHow much easier and cheaper can we 2019/2020 construct an autonom building ?
Several Prototypes
https://translate.google.com/translate?hl=de&sl=de&tl=en&u=https%3A%2F%2Fwww.zeit.de%2F2010%2F20%2FTechnik-im-Trend-Wohncontainerhttp://www.mobilchalet.de/https://www.ecocapsule.sk/https://www.wohnwagon.at/ 
Budget 300 US$ :
https://www.jovoto.com/projects/300house/ideas/12769
Good information source :
https://realgoods.com/ https://www.motherearthnews.com/ Last but not least : in development
indoor/outdoor room air ventilation with heat recapture +/- 150 Euros for 20 sqm living area
with ultra-low consume vent-motors and near 100% recapture efficiencyincluded :
https://worldwide.espacenet.com/publicationDetails/description?CC=DE&NR=202011002985U1&KC=U1&FT=D&ND=3&date=20110829&DB=EPODOC&locale=en_EP#Heat pumps with average C.O.P. > 10
compressor and electric motor improvements
Compact air ventilation with waste heat recuperation and integrated heat pump : British company IMI ,Award 1995 = 2019 " open source" technology = 75% cheaper
https://passipedia.org/basics/the_passive_house_-_historical_review/poineer_awardGermanys' first academic "Solar (Passiv) House" Building Construction Pioneers: "
1988 Hopfgarten Thueringen/ ex-GDR
By french Michel - Trombe wall ( ANWAR) experience used
1988 : BoAdamson + Wolfgang Feist
https://www.google.com/search?q=bo+adamson+passive+house+portugal&ie=utf-8&oe=utf-8&client=firefox-b-m Mr.Prof. Feist "sponsor" :
https://isorast.de/ https://de.m.wikipedia.org/wiki/SolararchitekturThe 2019 building construction architects and construction engineers are planning and errecting with " open source"- technology !
What has been 1990 " new granted air ventilation/ heat pump/ double glazed window + profile patent ware value ~ 1500 DM/ 750 Euros/sqm " as "Solar Passive House equipment" is 2019 now by " open source condition" maximal 200 Euros/sqm "Baumarkt/home depot" market price worth !
Fob factory and buying with group rebate : +/- 125 Euros/ sqm
About the "construction velocity" and worker paying :
https://m.youtube.com/watch?v=ez-M8wHX4Wk. "2000 sqft in 1 day"
or
http://contourcrafting.com/# "184 sqm in 1 day"
Only bad organized architects and construction engineers need more time
For ultrasonic house demolition/destruction to powder we need today less minutes : with the appropriate tool