ᐅ Mechanical Ventilation with Heat Recovery (MVHR) by Helios – Is Installation According to Manufacturer’s Instructions Sufficient?
Created on: 25 Nov 2015 21:24
M
merlin83
Good evening,
we need to place an order for a mechanical ventilation system with heat recovery on short notice. Currently, we are considering a HOVAL HomeVent FR (300) from supplier Z and a Helios EC 500 W R.
The Helios EC 500 W R is priced at a gross EUR 12,575.00 minus discount, with an estimated final price of about EUR 11,500.
The Hoval HomeVent FR (300) is priced at EUR 15,670.00 minus discount, with an estimated final gross price of about EUR 14,200.
The Helios seller prepared the offer based on Helios company specifications. I am not yet sure how many reference installations they have completed and will inquire about this. The Hoval seller based their offer on many years of experience in ventilation system installation.
In my opinion, the Helios 500 is more powerful than the offered Hoval 300. It is questionable whether the demand and design calculation based on Helios factory data is sufficient. The Hoval seller stated that the manufacturer’s data is not sufficient and that their planning is perfect.
What are your experiences? How many installations should the Helios seller be able to demonstrate as expertise to ensure that the system will be installed and function smoothly and safely?
Thank you in advance.
Best regards,
merlin83
we need to place an order for a mechanical ventilation system with heat recovery on short notice. Currently, we are considering a HOVAL HomeVent FR (300) from supplier Z and a Helios EC 500 W R.
The Helios EC 500 W R is priced at a gross EUR 12,575.00 minus discount, with an estimated final price of about EUR 11,500.
The Hoval HomeVent FR (300) is priced at EUR 15,670.00 minus discount, with an estimated final gross price of about EUR 14,200.
The Helios seller prepared the offer based on Helios company specifications. I am not yet sure how many reference installations they have completed and will inquire about this. The Hoval seller based their offer on many years of experience in ventilation system installation.
In my opinion, the Helios 500 is more powerful than the offered Hoval 300. It is questionable whether the demand and design calculation based on Helios factory data is sufficient. The Hoval seller stated that the manufacturer’s data is not sufficient and that their planning is perfect.
What are your experiences? How many installations should the Helios seller be able to demonstrate as expertise to ensure that the system will be installed and function smoothly and safely?
Thank you in advance.
Best regards,
merlin83
To be honest, I have no idea about this. I once read that it also depends on the people living in the house. The Hoval
How is the humidity level in your homes?
I had an appointment this evening with the ventilation installer who wants to sell the Hoval. He said that no other manufacturer comes close to Hoval’s moisture recovery and advised me against installing a different brand.
If possible, I will post the calculation here tomorrow.
SirSydom schrieb:
I got myself a Helios EC 370 W ET for 225m² (2,422 ft²) of ventilated living space (= 560m³ / 19,767 ft³).
With 560m³ and an intensive air exchange rate of 0.5/h (according to Helios Easyplan), you need 280m³/h (165 CFM).
The 370 still has some extra capacity.
Why you would need the 500 right away? No idea.
But take the W ET, otherwise you'd have problems with dry air at that volume. It’s not very expensive.
Oh, and ask for the calculation and post it here.
How is the humidity level in your homes?
I had an appointment this evening with the ventilation installer who wants to sell the Hoval. He said that no other manufacturer comes close to Hoval’s moisture recovery and advised me against installing a different brand.
If possible, I will post the calculation here tomorrow.
S
Sebastian7927 Nov 2015 22:27What do you expect from someone who wants to sell you something specific?
I have ordered a 500 Helios with a volume of over 700 cubic meters (24,700 cubic feet).
I have ordered a 500 Helios with a volume of over 700 cubic meters (24,700 cubic feet).
merlin83 schrieb:
that no other manufacturer comes close to the moisture recovery of HOVALHow did he explain that, or what exactly is supposed to be better about Hoval?
Sebastian79 schrieb:
What do you expect from someone who wants to sell you something specific?
I ordered a 500 model Helios for just over 700m3 (25,000 cubic feet). He compromises on the gas condensing boiler, but the ventilation system is fixed for him – even though he could offer others as well... I'm just wondering if anyone has had issues with humidity using the Helios?
Mycraft schrieb:
How did he explain it exactly, or what is supposed to be better about Hoval?A different system... which Hoval is apparently supposed to master best.S
Sebastian7927 Nov 2015 22:48That's just marketing nonsense...
I would simply hire someone else – you don't necessarily have to have both done by the same company.
I would simply hire someone else – you don't necessarily have to have both done by the same company.
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