I’ve just had one of those Worcester Bosch boilers installed and it is the bees knees. Measured at over 98% efficiency - how do they do it?
Kicks in at 4C to keep things up top from freezing - and to qualify for Worcester’s 10 year warranty. Hardly noticeable at night when it happens (more than usual the last few nights).
I had a Worcester/Bosch installed 18 months ago. Agreed it’s a real improvement over the old Worcester model that lasted 18 years. Not just efficiency and running cost, noise is real a surprise, I have trouble hearing that it’s actually running.
I added a Hive thermostat system included with the install and that is a real plus, fine control gives almost straight line temp, so many programmable options and control over internet enables geo fencing and turning up the heat before arriving home.
Other things, such as preamps, have firmware to control their logic circuits, but the firmware I’m referring to here is what’s in the streamers. The stuff people get exercised about when it’s updated.
That’s interesting, using Qobuz Connect I didn’t notice timing issues but I often feel any upgrades seem to slow music simply because there’s less smearing of the audio and you hear more in a given timeframe (that’s my best description of it anyway).
Playing a track from Audirvana however timing on a couple of things seemed odd, almost as though rhythm sections were delayed or erratic. Of course this might be Audirvana itself - need to playa bit as I may have had an upsampling algorithm running plus the Mac Mini it runs on is potentially struggling due to many many browser windows being open and only 8GB RAM. Planning on a new M4 one soon with at least 24GB as the M1 Mini struggles with 8GB despite many reviews saying it swaps data seamlessly. Then again it may be as I’m booting from an external SSD which is pretty fast but less so than the smaller internal SSD.
Spent a fascinating couple of days (not all day, still had to walk the dogs!) discovering that a project assessment tool designed by a friend to run in Chat GPT gave me radically different answers from the ones he got himself.
I ended up switching today to the subscription version of Chat GPT 5 and then discovered there is a quick answer/think longer switch that also affected the answer substantially. Lots more to do yet, but it’s taking me to places I didn’t even know existed.
It’s the standard Hive system, internet connections to smartphone/tablet and in-house wireless (Zigbee) links to the room thermostat and the boiler control system.
It’s good to see Hive introduced Opentherm capibility with the V3. They seem decent smart thermostats so having the extra flexibility of using Opentherm with compatible boilers was a good move.
I doubt an installer is capable of measuring the boiler efficiency.
The quoted boiler efficiency figures are based on tests carried out in a lab under certain conditions.
As a domestic boiler heats up and then cycles on and off, the conditions will vary and therefore the efficiency will vary. Similar to a car; efficiency varies. Accelerating vs. cruising to a stop, cruising at 50mph vs. cruising at 90mph.
That’s why a good control system is so important. It ensures the boiler is heating the home up in the most efficient manner.
Similar to guy who drives around accelerating slowly vs. the guy who drives around with the accelerator pedal stuck to the floor.