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HPAC Heating Plumbing Air Conditioning
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Добавлен 3 авг 2017
HPAC has been publishing Canada's leading publication for HVAC, plumbing and refrigeration contractors and associated professions since 1925.
Hydronics 101 at the Modern Hydronics Summit 2024
Hydronics 101 at the Modern Hydronics Summit 2024
Просмотров: 109
Видео
John Siegenthaler invites you to the Modern Hydronics Summit 2024
Просмотров 211Месяц назад
Hydronics industry expert John Siegenthaler has attended every Modern Hydronics Summit in Canada since the event first launched in 2013. He will be presenting two sessions during this year's event in Vaughan, Ontario, just north of Toronto. www.modernhydronicssummit.com/
30 Mechanical Minutes: Episode 19 "Tankless Water Heaters"
Просмотров 942 месяца назад
30 Mechanical Minutes: Episode 19 "Tankless Water Heaters"
30 Mechanical Minutes: Episode 18 "CMPX LIVE with SIGGY & The BEAN"
Просмотров 854 месяца назад
Recorded live at CMPX 2024 in Toronto, this edition of 30 Mechanical Minutes has HPAC Editor Doug Picklyk speaking with hydronic industry experts John Siegenthaler and Robert Bean (Siggy & The Bean) about what's hot in hydronics and why now is the best time to be involved in hydronics in the HVAC industry.
30 Mechanical Minutes: Episode 17 "Electric Boilers"
Просмотров 1835 месяцев назад
HPAC Magazine's editor Doug Picklyk sits with hydronics industry expert John Siegenthaler to talk about electric boilers. The discussion covers what electric boilers are and how they work, where they fit in the market and some examples of how John has incorporated them into projects.
Crane Day in Downtown Toronto/April 2023: video courtesy of Prestige Mechanical Ltd. / Teczr Media
Просмотров 2188 месяцев назад
Thank you to the team at Prestige Mechanical for sharing the video of this challenging crane day in early 2023 in downtown Toronto. The rooftop unit needed to be lifted up and over an existing building to reach the final destination. Always an exciting and rewarding accomplishment. Video courtesy of Prestige Mechanical Ltd. / Teczr Media
Modern Hydronics Summit 2023: John Siegenthaler, "Putting It All Together"
Просмотров 1,1 тыс.8 месяцев назад
Recorded at the 2023 Modern Hydronics Summit at the Hard Rock Casino in Coquitlam, B.C., this keynote presentation delivered by hydronics industry expert John Siegenthaler is a case study of a project Siegenthaler was very involved with and included using air-to-water heat pumps for heating, cooling, DHW and ventilation.
Modern Hydronics Summit 2023: Siggy & The Bean "The Hows and Whys for Electrifying Hydronics"
Просмотров 5838 месяцев назад
Recorded at the 2023 Modern Hydronics Summit at the Hard Rock Casino in Coquitlam, B.C., this opening keynote presentation was a tag team event by John Siegenthaler and Robert Bean (Siggy and The Bean), with the duo addressing the “Whys” and “Hows” for electrifying hydronics. Bean opened with the Whys, focusing on how as a society we’re wasting a lot of energy in the buildings we produce today,...
30 Mechanical Minutes: Episode 16 "Air-to-Water Heat Pumps"
Просмотров 3,2 тыс.11 месяцев назад
HPAC Magazine's editor Doug Picklyk sits with hydronics industry expert John Siegenthaler to talk about Air-to-Water Heat Pumps for the residential market in Canada. The discussion covers exactly what air-to-water heat pumps are, what's available today, how they operate and some system design considerations.
Sweet Heat Entries 2023
Просмотров 43211 месяцев назад
There were 19 entries in the HPAC Magazine Sweet Heat hydronic system installation contest in 2023.
Modern Hydronics with John Siegenthaler
Просмотров 276Год назад
Modern Hydronics with John Siegenthaler
30 Mechanical Minutes: Episode 15 "Heat Pump Water Heaters"
Просмотров 250Год назад
Steve Goldie joins this edition of the 30 Mechanical Minutes webinar series to share his insights into the history and current realities of heat pump water heaters. He sees their potential finally being realized.
30 Mechanical Minutes: Episode 14 "Inverter Compressors"
Просмотров 508Год назад
Ian McTeer and Gerry Wagner sit down with HPAC to discuss uncover details behind inverter compressor technology and flash injection into compressors and how these technologies are making heat pumps perform better in cold Canadian climates.
Modern Hydronics Summit 2021: Siggy & The Bean "Things We'd Like to See"
Просмотров 144Год назад
John Siegenthaler and Robert Bean share ideas on where they see areas for improvement in the field of Modern Hydronics in this session entitled "Things We'd Like to See".
Modern Hydronics Summit 2021: Selling Hydronics to Builders
Просмотров 27Год назад
Modern Hydronics Summit 2021: Selling Hydronics to Builders
Sweet Heat Contest 2022 - Winners Revealed
Просмотров 35Год назад
Sweet Heat Contest 2022 - Winners Revealed
Modern Hydronics Summit 2022: KEYNOTE Part 2 "Hydronics for Net Zero Homes"
Просмотров 552Год назад
Modern Hydronics Summit 2022: KEYNOTE Part 2 "Hydronics for Net Zero Homes"
Modern Hydronics Summit 2022: "Critical nature of Boiler Chemistry"
Просмотров 219Год назад
Modern Hydronics Summit 2022: "Critical nature of Boiler Chemistry"
Modern Hydronics Summit 2022: Tom Gervais "Regulatory Outlook for Boilers and Water Heaters"
Просмотров 43Год назад
Modern Hydronics Summit 2022: Tom Gervais "Regulatory Outlook for Boilers and Water Heaters"
Modern Hydronics Summit 2022: Zone Circulators or Valves? presented by Mike Miller
Просмотров 657Год назад
Modern Hydronics Summit 2022: Zone Circulators or Valves? presented by Mike Miller
Modern Hydronics Summit 2022: KEYNOTE Part I Hydronics for Net Zero Homes by John Siegenthaler
Просмотров 598Год назад
Modern Hydronics Summit 2022: KEYNOTE Part I Hydronics for Net Zero Homes by John Siegenthaler
30 Mechanical Minutes: Episode 13 "Hydronic Circuit Purging with John Siegenthaler"
Просмотров 708Год назад
30 Mechanical Minutes: Episode 13 "Hydronic Circuit Purging with John Siegenthaler"
Road to 2030: Part 2 "How Incentives Drive Lower Emissions"
Просмотров 28Год назад
Road to 2030: Part 2 "How Incentives Drive Lower Emissions"
30 Mechanical Minutes: Episode 12 "Expansion Tank Talk with John Siegenthaler"
Просмотров 3,1 тыс.Год назад
30 Mechanical Minutes: Episode 12 "Expansion Tank Talk with John Siegenthaler"
Modern Hydronics Summit 2022: Preview JOHN SIEGENTHALER - Hydronics and Net Zero homes
Просмотров 236Год назад
Modern Hydronics Summit 2022: Preview JOHN SIEGENTHALER - Hydronics and Net Zero homes
Modern Hydronics Summit 2022: Preview "Brian Morgan & Jeff House"
Просмотров 1902 года назад
Modern Hydronics Summit 2022: Preview "Brian Morgan & Jeff House"
John’s graph showing temperatures vs distribution equipment (around 10min mark) should have a dotted area instead of line at 120F for baseboards. The line implies can’t use below 120F when you can. It really depends on extent of weatherization, outside temp & set point. Here’s an example of old 180F baseboards powered by AWHP & well below 120F; start around 23min in ruclips.net/video/9SMxaOMX-oY/видео.html 9:58
Such a shame that we don't have R290 monoblock heat pumps in Canada or the US yet. They are super efficient, work in very cold weather and can heat water to 70/80C. In Canada more than 1/2 of your gas bill is fees unrelated to the amount of gas you use. I'm going to get rid of the gas completely. I have to replace my gas cooktop and my gas cloths drier. Will probably buy a heat pump cloths drier.
Brilliant video! So much ground covered in just 40 minutes.
Glad you enjoyed it!
If the designer follows the manufacturers recommendations for minimum fluid volume in the system, defrosting should not produce a noticable drop in termperature indoors, but North America typically has homes with much lower thermal mass than the UK or Europe, so it could be more of an issue in North America. A system volumiser or buffer tank is a reasonable solution, but in the UK some experts are actively trying to design out buffer tanks (and zone valves) from their systems. Perhaps the ultimate buffer tank configuration is no buffer tank! Great to hear that in John's experience home owners don't experience any cooling when the system is in defrost.
Panel radiators are very common in Europe and the UK in rooms where the home owner want thick carpets and thick underlayment. Combined with simple Thermostatic Radiator Valves, to avoid overheating due to thermal gain, they can be a very cost-effective solution were cooling isn't required. Radiant ceiling or fan coils are the best emitters for cooling applications. Radiant floors or panel radiators are the best for heating. Radiant walls might be a good in a few limited situations, but my sense is that there is more risk of a nail through a wall than through a floor or ceiling.
Another solution to the two buffer tank question is two heat pumps: one for space heating/cooling with a single buffer, and a ducted Heat Pump Water Heater for hot water. The ducted Heat Pump can be a CO2 model, so able to heat domestic water to a point where Legionella is not a concern. This avoids the need for the space cooling heat pump to have to switch to heating mode to keep a supply of hot water ready for use. This configuration also allows the heating heat pump to operate at maximum efficiency in heating mode because the flow temperature can be controlled by outdoor reset.
The Global Warming Potential of R410a is 2088, for R32 it is 675, for R290 (Propane) it is 3, and for R744 (CO2) it is 1. Propane is pretty much the ideal refrigerant for small residential monobloc systems where all the refrigerant can be kept outside of the home; although CO2 is better for high temperature applications. For split systems and larger commercial systems, Propane is not ideal and an alternative refrigerant is preferable.
In Europe, many manufacturer are recommending Anti-freeze Valves instead of anti-freeze fluid. Anti-freeze fluid lowers the performance of the system whereas anti-freeze valves don't. The valves need to be good quality and protected from water & snow. They are fitted on the supply & return lines to the outdoor unit outside of the home. They release some water from the system if the outside temperature drops below 38F. If the outside temperature is below 38F, you can be certain that the heat pump will be running UNLESS it has a fault or there has been a power cut. If the heat pump is running the valves won't open, but in the even of a fault or power cuts they will open just enough to let a little water out to stop the outdoor unit from being damaged. The system needs to be topped up when the fault or power is restored, but you only need to top it up with fresh water, not a solution of water and anti-freeze.
Dales question at the 28:35 mark. I recently noticed my transfer plates are falling off. Staples were used. I plan on using screws to re-attach the plates. Is it possible that the contractor set the compressor too high and used too narrow of a staple? Please help. I've got twins on the way and the plates are above their cribs
Since I'm a student of technology, the smart circulolator pump is the new way to heat your house. Electronics is taking over. ECM circulator pumps are here, and it will take a greater technology to put it to the side.
Boiler vs tankless? What are your thoughts?
Subscribed and appreciate the channel! John, my daughter will build a 1200 sf ICF house soon. Hydronic heat for sure. Better to put radiant wall panels on the outside walls or interior walls. House located in upper Michigan, 3-5 days get to -20 F, most winter is 0F-30F. Thanks in advance!
THANK YOU. 🤟 🤜🤛
Builders and quality don't usually go hand in hand. Personally, I want it to look good, but before that I actually want it to work. Without that, effiency goes out the window.
Do you have more information on how to install the insulation? I've seen some places saying you should put in a reflective layer before the insulation... some say that reflective layer should also be a few inches below the plates to create a hot air pocket. But that would mean the insulation isn't pushed up right against the plates. Thoughts?
Thanks for the video. There is much good information here. However, John Siegenthaler is wrong about the fin efficiency of heavier gauge extruded aluminum heat transfer plates over very thin inadequately formed heat transfer plates. Also the FEA (finite element analysis software) that he is using is not appropriate for making the predictions and close comparisons that he made. A look at the color fea plot that he produced shows 100% heat transfer for the aluminum across it's width and 100% contact of the tubing with the aluminum plate for both samples. He' made these assumptions he is unable to adequately mesh (model) the heat transfer plate and has no idea what to input with respect to tubing contact. At that scale, he is attempting to evaluate and resolve differences in aluminum thicknesses as little as .040" or less. This is a wildly inaccurate representation of the real 3 dimensional world where these assumptions may or may not hold true along the length of fin/tubing. This is a well known limitation of 2 dimensional FEA analysis. Errors are magnified when extrapolated to the 3d world. ie. btu/ft2 It's easy enough to understand that given the same heat transfer across the tube plate then the wider plate would produce higher output and it's not necessary to go through this convoluted reasoning to establish that fact. All panel heating systems have heat affected zones surrounding the tubing and it's common practice to vary tube spacing and tube diameter to achieve the desired result. However, it is strongly misleading to make claims regarding variables that weren't even studied and assumed to be equivalent at 100%. That's not fair. Any fair empirical race would reveal that the extruded plates, even with reduced width produce far higher outputs and greatly reduced water temperatures. Empirical, hands on investigations easily show the truth behind how the performance of these heat transfer plates compare with one another. Please see my blog at radiantdesignandsupply.com/theheatexchanger for a simple infra red empirical study of different heat transfer plates and how they compare. Any proper FEA analysis must use variables that have been determined and verified from empirical experimentation. Full disclosure, I developed the original and still the best extruded aluminum heat transfer plate - the ThermoFin. These heat transfer extrusions were designed to provide a very tight rigid snap grip of the various tubing types used in floor heating including PEX and copper. These plates are rigid, tempered tempered extrusions that are available in 4' and 8' lengths and designed to eliminate any differential expansion between the tubing and the plate regardless of the tubing used. They are available in the U or omega shape similar to the the sheet metal plates that John showed. They are also available in the C shape which grips the tubing while holding it away from the substrate. These plates are 4" wide, .050" and .063" thick and 4' and 8' long compared with the 5"-6 wide x 20" long, .020" typical plate that John is talking about. Our original development of the ThermoFin family of extrusions resulted from our terrible experiences with the folded sheet metal plates. The fact is, they don't work much better than no plates at all. Dale Pickard President Radiant Design & Supply
Why don't you use CO2/R744 or propane/R290 for your outdoor mono-block heat pumps? R410 has very high GWP.
Hi guys, great video, thanks! You answered many of my questions. I am not an HPAC professional, just a homeowner researching hydronic radiant heating +/- hydronic cooling for a new build cottage/retirement home. Also looking to supply DHW with heat pump, but having a hard time picking out the best system: one oversized heat pump? separate heat pumps for each, or a heat pump for one and tankless electric for the other? I need help with that one. I will have a solar PV powering the large majority of whatever equipment I end up choosing so all electric makes sense (with wood stove or propane fireplace for backup heat). I also will need a cooling solution which I suppose shouldn't be a problem if I have a separate heat pump for the radiant... also need to decide on hydronic cooling for the slab vs air cooling! John I could really use a consult, what is your hourly rate to pick your brain? hahaha Oh good timing, RUclips just showed me a preview for your air to water heat pump webinar, guess I'll watch that and then the video on tube depth. Thanks again! ... update: I just googled hydronic cooling and a link to your article on "small scale hydronic cooling" came up. John you are a gold mine of information!