Search with Wattson

Notifications

Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Measuring your COP

batalto · 2021-08-02T19:32:27Z

Does anyone track the COP on their system? I've been doing mine manually since it was installed but I need something better. I'm thinking maybe a raspberry pi with a CT sensor. Right now the hot water is getting cop of 4 @50° with outside temp at 16°

Page 5 / 18 Prev Next

Air Source Heat Pumps (ASHPs)

Last Post by mjr 4 years ago

215 Posts

15 Users

186 Reactions

79.9 K Views

RSS

Morgan

(@morgan)

Noble Member Member

Joined: 5 years ago

Posts: 703

11/08/2021 3:22 pm

@batalto @derek thanks guys.

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.

ReplyQuote

(@heacol)

Prominent Member Contributor

Joined: 5 years ago

Posts: 415

11/08/2021 6:01 pm

@morgan Yes that is correct, I would suggest that TRV valves are only put on the bedroom radiators, all the rest of the radiators have lockshields only. The temperature controller/sensor must be in a common area. That is how we do it. What unit are you getting installed?

ReplyQuote

Morgan

(@morgan)

Noble Member Member

Joined: 5 years ago

Posts: 703

11/08/2021 6:38 pm

Posted by: @heacol

@morgan Yes that is correct, I would suggest that TRV valves are only put on the bedroom radiators, all the rest of the radiators have lockshields only. The temperature controller/sensor must be in a common area. That is how we do it. What unit are you getting installed?

LG 11.2 Ecodan Ultra Quiet. FTC Controller. Does that answer the question?

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.

ReplyQuote

(@heacol)

Prominent Member Contributor

Joined: 5 years ago

Posts: 415

11/08/2021 8:10 pm

@morgan Yes, make sure you get the RF room sensor.

ReplyQuote

Morgan

(@morgan)

Noble Member Member

Joined: 5 years ago

Posts: 703

11/08/2021 8:41 pm

Posted by: @heacol

@morgan Yes, make sure you get the RF room sensor.

@heacol
RF room sensor? Lost. Help appreciated.

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.

ReplyQuote

(@heacol)

Prominent Member Contributor

Joined: 5 years ago

Posts: 415

12/08/2021 7:25 am

@morgan This is what you need instead of a standard room thermostat,

A standard third party thermostat will significantly increase your running costs.

👍

ReplyQuote

Morgan

(@morgan)

Noble Member Member

Joined: 5 years ago

Posts: 703

12/08/2021 7:30 am

@heacol My installer is going with a Neostat wifi. Comments?

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.

ReplyQuote

(@heacol)

Prominent Member Contributor

Joined: 5 years ago

Posts: 415

12/08/2021 7:43 am

@morgan Your choice, The Neostat is a complicated on-off thermostat that can be only programmed by the idiot who designed it. Whenever I come across any products by that manufacturer, they go in the bin, to the delight of the poor person whom it was foisted upon.

If you are determined to have an on-off thermostat, this will give better performance as you can actually operate it without the 20 page manual. The 2 thermostats are exactly the same thing. They work like a light switch.

https://www.screwfix.com/p/flomasta-emp912mt-mechanical-room-thermostat/132jk

ReplyQuote

Morgan

(@morgan)

Noble Member Member

Joined: 5 years ago

Posts: 703

12/08/2021 7:52 am

@heacol Oh well that lifted my day lol. He suggested the wifi neostat as it can be moved around to find our ideal site.

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.

ReplyQuote

(@heacol)

Prominent Member Contributor

Joined: 5 years ago

Posts: 415

12/08/2021 8:08 am

@morgan The Mitsubishi unit is also Wi-Fi, but it talks intelligently to the controller. Same thing, but it actually works. The Neostat will add at least 30% but probably 80% to your electricity bill.

ReplyQuote

Morgan

(@morgan)

Noble Member Member

Joined: 5 years ago

Posts: 703

12/08/2021 8:12 am

@heacol Very cheery news! They look like they do the same thing to me but what do I know!

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.

ReplyQuote

(@heacol)

Prominent Member Contributor

Joined: 5 years ago

Posts: 415

12/08/2021 8:27 am

@morgan, you could not be further from the truth, they do not do the same thing. The Mitsubushi unit talks to the heat pump, informing it of the actual internal temperature and allows the heat pump to supply the correct ammount of energy to your property to maintain the internal temperature at the most efficient rate.

The Neostat switches the heat pump on and off, and does nothing else, like using the ignition key in a car to regulate the speed.

ReplyQuote