Combi Comparison - any real life experiences?

[thunderstruck]

Hi all,

A gas engineer has inspected my property and suggested that I go with a combi boiler, even though I want to support two showers and a bathtub in the near future.

To compensate, I am now looking at the following two, due to the high flow rates (both with modulation 10:1 - so should be economical):

• Vaillant Ecotec exclusive green IQ 843
• Greenstar 8000 Life 50kW

Had a conversation with a Vaillant approved installer and he told me that I am the first person that mentioned this particular model and he would definitely NOT recommend it given the complexity of it - so I was a bit discouraged.

Anyone has any actual experience with any of these and whether I should go for one over the other - or none of them?

Thanks!

 

[ShaunCorbs]

Yep combi at best one outlet at the same time now if you can see yourself using more than one best to go with an unvented cylinder and heat only boiler

 

[hometech]

There is a very low cost option that will provide the perfect solution. Give each bathroom its own continuous water heater. Around £350 each they will be the best investment you ever make. They can even be fitted on the outside wall so no flue needed.

 

[thunderstruck]

There is a very low cost option that will provide the perfect solution. Give each bathroom its own continuous water heater. Around £350 each they will be the best investment you ever make. They can even be fitted on the outside wall so no flue needed.

Aren't these a massive hit to electricity bills though? Any brands I should be researching on?

 

[hometech]

Aren't these a massive hit to electricity bills though? Any brands I should be researching on?

Gas not electric. Having a high tec combi for heating and back-up DHW and continuous water heater for DHW. Best showers ever..control the flow temp so no mixing down with cold water. Never get fluctuations in water temp either so turn as many cold water taps as you want, still the same output. It's only the UK that is in the dark ages when it comes to wall heaters.....

 

[EvilDrPorkChop]

Hi all,

A gas engineer has inspected my property and suggested that I go with a combi boiler, even though I want to support two showers and a bathtub in the near future.

To compensate, I am now looking at the following two, due to the high flow rates (both with modulation 10:1 - so should be economical):

• Vaillant Ecotec exclusive green IQ 843
• Greenstar 8000 Life 50kW

Had a conversation with a Vaillant approved installer and he told me that I am the first person that mentioned this particular model and he would definitely NOT recommend it given the complexity of it - so I was a bit discouraged.

Anyone has any actual experience with any of these and whether I should go for one over the other - or none of them?

Thanks!

Yeah stay well clear of the GreenIQ. Vaillant have a massive problem with them. Stick to the EcoTec Plus.

But yeah, you need a system boiler and unvented cylinder providing your incoming mains is OK.

 

[thunderstruck]

Yeah stay well clear of the GreenIQ. Vaillant have a massive problem with them. Stick to the EcoTec Plus.

But yeah, you need a system boiler and unvented cylinder providing your incoming mains is OK.

Thanks will do!

 

[thunderstruck]

Gas not electric. Having a high tec combi for heating and back-up DHW and continuous water heater for DHW. Best showers ever..control the flow temp so no mixing down with cold water. Never get fluctuations in water temp either so turn as many cold water taps as you want, still the same output. It's only the UK that is in the dark ages when it comes to wall heaters.***.

yeah never heard of such a set up before, I need to check this out.

May be a bigger job to get gas supply to every bathroom with a shower, but I'll check it out

 

[gmartine]

@ Hometech

I'd be interested to know how many clients you have installed this system on?

 

[Gasmk1]

Gas not electric. Having a high tec combi for heating and back-up DHW and continuous water heater for DHW. Best showers ever..control the flow temp so no mixing down with cold water. Never get fluctuations in water temp either so turn as many cold water taps as you want, still the same output. It's only the UK that is in the dark ages when it comes to wall heaters.***.

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