How's heating electrification going on the Isle of Dogs?

Octopus and Heat Geek are strong advocates and each is telling its story.

I rather like the Heat Geek model and the effort they have put into training the trade.

I took the plunge here as my 2006 machine was ready for the care home. I installed a new Bosch IDS inverter air to air heat pump.

It has been a learning experience. The machine modulates itself for low supply air temperature. The air leaving the register is 1-2C warmer than the return air entering the air handler.

This is very much akin to 40C flow temperature and modulating flow temperature in UK high efficiency hydronic heating. I've had to learn the same lessons. Put it in Auto and sit on my hands.

My machine is not cold climate rated so output rolls off below 0C. Our heating design temperature is -5C and we've seen -8C (17F) this winter. Brrrr. Aux heat was on most of that week. 5 KW of PTC heating. Big bill, that.

#HeatPump #AirToAir #Inverter

Friday, July 4, 2025

One of Russia’s most critical targets: Ukraine confirms strike on missile battery plant in Lipetsk — Nothing but terror and murder: Russia pounds Kyiv with ballistic missiles in massive overnight attack — Ukrainian drones destroy Russian ammunition depot in Donetsk Oblast — China’s foreign minister tells EU that Beijing cannot afford Russia to lose in Ukraine … and more

https://activitypub.writeworks.uk/2025/07/friday-july-4-2025/

Air-to-Air — Piaggio FWP.149D formation #piaggio #p149d #fwp149d #fockewulf #aviation #aircraft #avgeek #airtoair #photography #aviationphotos #luftwaffe

Photo chase plane pilot: @ulf_kl #photography (Instagram 12.05.2019)

German Air Force iconic F-4 Phantom from Wittmund. I took this photo 12 years ago near Wittmund. F4 Phantom makes a nice airshow behind Skyvan for us. Photoflight organized by Aviation Photocrew @aviationphotocrew and Bluelife Aviation @frankcrebas.

#air2air #aviationphotography #air2airphotography #airtoair #airtoairphotography #aviation #nikon #jet #jets #aviationphotocrew #skyvan #bluelifeaviation #phantom #F4 #wittmund #luftwaffe #germanaf #militaryplane #military #phantomfriday

Rack up another #AirToAir kill for the #F22. It will be interesting to find out more details about the wreckage.

#AIM9X
#NORAD

#USFighter jet shoots down unidentified object over #Canada | Military News | Al Jazeera

https://www.aljazeera.com/news/2023/2/12/us-fighter-jet-shoots-down-unidentified-object-over-canada
>Shootdown is second such action in as many days and comes amid tensions over a suspected Chinese spying balloon,

An #AirToAir #video with everyone involved having their feet firmly on the ground? Sure, why not? All it takes is a #drone, an RC #aircraft and a bunch of weirdos, who do the flying and the filming. 😉

And the one thing I can tell you about it is, doing it is a lot of #fun!

https://youtu.be/VLmi7hF2c68

Throwback Thursday… KC135 jolly out of Mildenhall many moons ago…

#f15 #f15eagle #kc135 #usaf #airtoair #avgeek #aviation #flying #35mm