Conor Posted May 16, 2021 Share Posted May 16, 2021 Just spotted these on BPC. Very good price for passive House certified units. Manual seems detailed and concise which is a surprise. Never heard of them, not much info out there. Any experience? https://www.bpcventilation.com/salda-smarty-3x Link to comment Share on other sites More sharing options...
Bonner Posted May 17, 2021 Share Posted May 17, 2021 Also interested in these units, seem to be good value but not sure about reliability? Link to comment Share on other sites More sharing options...
Conor Posted May 17, 2021 Author Share Posted May 17, 2021 Just now, Bonner said: Also interested in these units, seem to be good value but not sure about reliability? With a two year guarantee and BPC 30mins drive away, I'm prepared to take that gamble. I'm saving £2k over Zehnder units! I spoke to them today and they haven't quite got their heads round these units yet and weren't able to answer my technical questions. A bit more homework required, but I'm about 80% sure I'll be buying two smarty 3 units this week. Link to comment Share on other sites More sharing options...
Bonner Posted May 17, 2021 Share Posted May 17, 2021 It will be 3 months or so before I need one so please share your homework ? Link to comment Share on other sites More sharing options...
Ronan 1 Posted May 17, 2021 Share Posted May 17, 2021 17 minutes ago, Bonner said: It will be 3 months or so before I need one so please share your homework ? +1 Link to comment Share on other sites More sharing options...
Oz07 Posted May 18, 2021 Share Posted May 18, 2021 14 hours ago, Conor said: With a two year guarantee and BPC 30mins drive away, I'm prepared to take that gamble. I'm saving £2k over Zehnder units! I spoke to them today and they haven't quite got their heads round these units yet and weren't able to answer my technical questions. A bit more homework required, but I'm about 80% sure I'll be buying two smarty 3 units this week. 2 units because of size of house? Link to comment Share on other sites More sharing options...
Conor Posted May 18, 2021 Author Share Posted May 18, 2021 (edited) 28 minutes ago, Oz07 said: 2 units because of size of house? Yes. 315m², air volume of 900m³ means I need an overall flow rate of about 600m³/hr. A single unit would struggle and due to the layout of the house the pressure losses in the long duct runs would be huge. Two units work much better. Edited May 18, 2021 by Conor 1 Link to comment Share on other sites More sharing options...
jack Posted May 18, 2021 Share Posted May 18, 2021 It seems they're Lithuanian. Quite a range of products on their website, and it looks like they've been doing this for a while. Link to comment Share on other sites More sharing options...
andy Posted May 18, 2021 Share Posted May 18, 2021 10 minutes ago, Conor said: Yes. 315m², air volume of 900m³ means I need an overall flow rate of about 600m³/hr. A single unit would struggle and due to the layout of the house the pressure losses in the long duct runs would be huge. Two units work much better. I'd be inclined to go for a larger, single Zehnder unit based on my experience to date. Not sure if you have or not but I would 100% get the system designed by a pro e.g. Green Building Store and see what they recommend. My air volume is circa 500m³ so I wouldd think maybe the larget Q600 could do you? Link to comment Share on other sites More sharing options...
Conor Posted May 18, 2021 Author Share Posted May 18, 2021 10 minutes ago, andy said: I'd be inclined to go for a larger, single Zehnder unit based on my experience to date. Not sure if you have or not but I would 100% get the system designed by a pro e.g. Green Building Store and see what they recommend. My air volume is circa 500m³ so I wouldd think maybe the larget Q600 could do you? Both my neighbour (ventilation specialist) and two other companies have recommended two units. I had one company do a design (they insisted) and tbh I wasn't impressed and have done a much better job myself. I had initially wanted a single Zehnder but with the layout (three stories) the pressure losses would mean the unit would struggle and be noisy. I come from the water industry where we routinely oversize pumps for longer life, better efficiency and future proofing... Taking the same approach to my ventilation. Link to comment Share on other sites More sharing options...
andy Posted May 18, 2021 Share Posted May 18, 2021 2 hours ago, Conor said: Both my neighbour (ventilation specialist) and two other companies have recommended two units. I had one company do a design (they insisted) and tbh I wasn't impressed and have done a much better job myself. I had initially wanted a single Zehnder but with the layout (three stories) the pressure losses would mean the unit would struggle and be noisy. I come from the water industry where we routinely oversize pumps for longer life, better efficiency and future proofing... Taking the same approach to my ventilation. Sounds good to me then, just a shame fromt he amount of space the units take up but sounds like you have enough of that Link to comment Share on other sites More sharing options...
Goldfinch Posted June 2, 2021 Share Posted June 2, 2021 On 17/05/2021 at 20:08, Bonner said: It will be 3 months or so before I need one so please share your homework ? If your French is up to it, there is a VERY detailed TOP 15 mvhr list on a Belgian DIY site that includes the Salda Smarty. You need to ask for a password to read it - they want to keep commercial activity off the site. They gave it a very good rating - high quality products, excellent documentation and clearly built for cold climates. The downside was a bit noisy and disappointingly expensive. Being rip-off France and Belgium, the price is around 2,700 euros!! It's an absolute bargain at bpc. The website is bricozone.be/vmcdf and the list is titled Quelle VMC-DF choisir ? 2 Link to comment Share on other sites More sharing options...
Conor Posted June 3, 2021 Author Share Posted June 3, 2021 (edited) My salda smartys arrived last week. They are reassuringly heavy and solid!!! Noise not so much of an issue for me as they'll be in the basement plant room and I've attenuators and all ducts. Edited June 3, 2021 by Conor Link to comment Share on other sites More sharing options...
Happy Valley Posted November 3, 2021 Share Posted November 3, 2021 On 03/06/2021 at 06:27, Conor said: My salda smartys arrived last week. They are reassuringly heavy and solid!!! Noise not so much of an issue for me as they'll be in the basement plant room and I've attenuators and all ducts. How are you getting on with these units. Are you using them yet? These are one of my options (3x 1.1 unit) along with a Vent Axia Kinetic Advanced S - we are 160 sq m 1 Link to comment Share on other sites More sharing options...
Conor Posted November 3, 2021 Author Share Posted November 3, 2021 Not installed it yet unfortunately... Will be another couple weeks I'd say. 2 Link to comment Share on other sites More sharing options...
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