andrewc

A little update. We didn't have to change the pipework but we did add a few larger radiators which wasn't a big issue. The airflow seems fine judging by the way the heat pump is performing. This month (November) we are getting about 5 KWhs of heat for every KWh of electricity which makes it cheaper than gas on running costs. We are using Octopus tracker which costs around 20p a KWh which when you divide by 5 creates heat at 4p a KWh. If you want to have a look and a listen let me know.

I used a company called Conga from Ipswich.

I wanted to show that you can put an Air Source Heat Pump into a smallish garden in a Victorian terrace right here in East Dulwich. We had the heat pump fitted plus the domestic hot water tank in the garden and covered it with a green roof/planter. Hot tank on the left, heat pump on the right in the photo. It's unusual to put a hot tank in the garden in this country but it saves trying to find a space indoors. It is doubly insulated. The rules are that the heat pump has to be 1m from the boundary. It is incredibly quiet...quieter than the flue from a gas boiler. There isn't a lot of space in the garden but I think it works well.

I wonder how many people are working out how to leave the car at home for short journeys (5 miles) due to the cost of petrol as well as environmental considerations. I have been using the bus and train much more...even for work, when I don't have to take much equipment with me. Also just bought a new guitar case which is much lighter so I can get to rehearsals without the car. Small decisions made by a lot of people add up to a big change.

A report on LTNs in London. https://www.theguardian.com/world/2022/jun/09/low-traffic-neighbourhoods-report-london-ltn-schemes?CMP=Share_iOSApp_Other

I spoke to a Labour activist before the election result who was worried about doorstep pushback on the ULEZ and LTNs on labour voting. Looks like the LTN/ULEZ rebellion didn't happen?

https://consultations.southwark.gov.uk/environment-leisure/melbourne-grove-market-trial/

I'm not sure if there's a weblink for this info but I have a piece of paper that says: 354 objections were made to opening up Melbourne Grove South with 16 proponents. Does anyone have a link for this?

The bus journey times look promising for those worried about the effect of LTNs on buses. https://www.southwark.gov.uk/transport-and-roads/improving-our-streets/live-projects/dulwich-review?chapter=4 Also something is encouraging a huge increase in cycling. My guess is its part LTN and part the zeitgeist.

How do people feel about the increase of 60% in bike use?

Plus the rise and rise of the e-bike. All kinds of people seem to like them. Just sayin.

I notice that there are a variety of base line dates used for comparison, one in January, one in February and all the rest in the months April to October. I have no way of knowing how to invalidate which baseline data and on what grounds. I would prefer that someone skilled in data and statistics could advise on the available data and while showing their method and reason make a judgement which I can assess for myself.

How many data points from the baseline should we treat as valid? And on what grounds?

I think the data speaks for itself.

Where can I find details about the winter pre covid baseline figures used?