Jan Geerts

BCDadvies | expert healthy, comfortable & climatepositive living | certified PassiveHouse designer | biobased | resilient | vernacular |

[Jan Geerts @Jan_Geerts]

. @WolfgangFeist do you know the answer to this question?

[Jan Geerts @Jan_Geerts]

Does the PHPP show how long it will take for a house to heat up to desired temp, when completely cooled down (e.g. holiday)? @the_iPHA @ElrondBurrell @fclauson @JurajMikurcik @MarkSiddallRIBA @ArchitypeUK @PHAccelerator @PassivhausTrust @lloydalter

[Jan Geerts @Jan_Geerts]

@fclauson @the_iPHA @ElrondBurrell @JurajMikurcik @MarkSiddallRIBA @ArchitypeUK @PHAccelerator @PassivhausTrust @lloydalter A #Passivhaus doesn't. The #passivehausChallenge is a clear example. The case is a holidayhouse (not PH) used in the weekends. In the winter it is hard to heat up, even with a 8kW woodstove. HD = 38 kWh/m2a

[Jan Geerts @Jan_Geerts]

Does the PHPP show how long it will take for a house to heat up to desired temp, when completely cooled down (e.g. holiday)? @the_iPHA @ElrondBurrell @fclauson @JurajMikurcik @MarkSiddallRIBA @ArchitypeUK @PHAccelerator @PassivhausTrust @lloydalter

[Jan Geerts @Jan_Geerts]

lever meerwaarde voor je opdrachtgevers door de BENG optimaal in te zetten. leer hoe, bij het webinar van Kennisinstituut KERN https://t.co/nyiXtcuf3t

[Jan Geerts @Jan_Geerts]

#PassivhausChallenge
Tuesday feb23rd, 21h

Tinside: 16.5C
Toutside: 14C

Kept de windows open all day long. It was a bright and sunny day

[Jan Geerts @Jan_Geerts]

Not that much of a #PassivhausChallenge. 14day weather forecast. Unusually warm for this time of the year. 9 o'clock in the morning. Toutside: 5C. Tinside 11.6C. name house: #NatuurlijkPassief @MarkSiddallRIBA @the_iPHA @WolfgangFeist @ElrondBurrell

[Jan Geerts @Jan_Geerts]

Some pictures of the house as it is today

[Jan Geerts @Jan_Geerts]

@Platform_M3 Geen goot. Het water komt in een grindbak terecht die rondom de woning wordt aangelegd.

[Architype @ArchitypeUK]

#PassivhausChallenge

Orkneyhaus - 8pm

No heating for 76 hours

TEMP INSIDE (C): 23.8
TEMP OUTSIDE (C): 5.8
WEATHER: it’s been a beautiful sunny but very chilly day so the sun has kept the house nice and warm!

How you feel: very comfortable!

[Jan Geerts @Jan_Geerts]

@Alex_Verbeek Lived in Ottawa in the winter of 2003. Often biked down to the #RideauCanal to go skating. Do they still sell beavertails? #MissingCanadianWinter

[Francis Clauson @fclauson]

#PassivhausChallenge

Condensation on the widows
But in a #passivhause it’s on the exterior glass not on the inside as the pane (much like your car windscreen on a cold morning ) is cold enough for condensation to form

[Brendan Haley @br_haley]

Sweden required a blower door test before occupancy in the late 1970s

[Paper Igloo Architecture @paperigloovoice]

Ostro Passivhaus
22.02.21 at 7.30am
Temp in: 18.6°C
Temp out: 6.0°C
Weather: Dry & still.
How we feel: fine - a bit cooler but no problem.
#PassivhausChallenge

[Francis Clauson @fclauson]

#PassivhausChallenge
60hrs-no formal heating
OAT 2c-overnight airfrost
IAT 21C
Weather-crisp/cold
PV on 7.15am
How I feel-happy solar gain outlook good
Thermal mass 300ton+ concrete
Thermal lag - will start to show soon
@SEAI_ie @MarkSiddallRIBA @winkenswexford @Beyondpassive