Search results

Graham, thanks for that insightful response and clarification on pressure vs flow :) I've found the leak...and I'll admit I'm a bit puzzled. It's not an end tank. Pics and vid to come once I can set up a pressure test off the car. There are very, very few accounts of LEAF coolant leaks out...

Great question...and excellent follow up. I did a bit of digging on this one. I'd agree that if you look at say the coolant path in the LEAF PDU cooling plate, it looks relatively open. GM released this TSB: https://static.nhtsa.gov/odi/tsbs/2017/MC-10138018-9999.pdf which is referencing the...

So a lot of bits to remove to get to this EV’s little radiator… This was the first time I’ve pulled the fascia off a “modern” car. It was not so bad of a job. The radiator is actually in front of the heat pump condenser/evaporator in this car. The rad is removed in this shot. I was a bit...

Awesome pics of the kids in Mexico. Memorable perspective there on a few shots :) Your house is looking great. All that attention to detail...

Sadly, here the current project in the shop. Our 2018 LEAF (EV) started this spring with a super small coolant leak that I simply could not locate. I caught the faintest whiff of coolant when parking one day and upon checking the coolant reservoir, was quite surprised to see that it was low...

If any of you are roller clutch specialists, I'd love to hear from you on the appropriate lube for these. I understand that some very precise versions of these are also used in higher end fishing reels. This is a super tiny roller bearing clutch used in Shimano fishing reels: I used Dumond...

Drives, yes..spring is slowly upon us, but the some snow remains. It's the least favorite part of the year for me as biking on the trails is not great and most lakes still have ice on them :-( I've been busy in the shop though and just uploaded the update to my first ever YouTube video...

For sure, winter (particularly with frozen soil) is when you'll see the highest radon levels. It is exacerbated by stack effect given higher outside/inner temp deltas and therefore a higher pressure differential at the basement vs top floor. @bd8134 , where you monitor CO2 will have a dramatic...

On the ERV issue, I would not turn it off, unless it’s summer and you have windows open. This is where automation tied to C02 levels and the ErV control is a good thing. I monitor for VOC, Radon, CO2 and pm2.5 on all three floors. I’ve been gathering data for about 3 years now in an...

These are the old school/cheaper versions good to about 7A@240V: https://www.amazon.ca/Supplying-Demand-Switching-Universal-Compatibility/dp/B07TVFLR5W

The Ecobee will work just fine, but you’ll need to use a 24V relay. I’ve done a few installs for 120V overhead radiant using a simple fan relay. This style is a bit more compact and has a 24V transformer on board to power the stat as well. There is a 240v version of below as well...

I picked up a Dremel Saw Max specifically for this kind of work. It has a dust collection port which you can attach to a shop vac. Make sure you use a drywall bag in your shop vac. You can set depth and use a straightedge off the floor to make nice cuts. 1/4” ply works great for a straight...

If you look at a box fan, the case is square, but the area covered by the fan blades is round. If you add any resistance to the box fan (like adding filters to it!), a significant amount of turbulent air will exit the fan backwards, outside of the fan blades circular path. It's kind of like a...

The box fan deal with four filters duct taped together is the lowest cost filter you could sort, and it filters a lot of air. You’re at about 250 CFM with a Lasco fan and four filters. If you suspend the fan and use 5 filters and a shroud (very important) , you’d have max performance in the...

The 20A circuit with multiple 5-15R is a code compliant alternative to 15 amp split receptacles used for many kitchens here. It for sure reduces many nuisance trips. Any EVSE allowing more than 12 amps on a 5-15R type plug is an unacceptable fire risk IMHO for the uneducated public and I’m...

If you want fresh air in your shop with some heat recovery, sure this would work. You’d just want to build a filter for the stale air return using standard 16x25x5 filters for best results. Uses PSC motors, so likely around 180 watts on the highest speed. That unit is around 60% efficient, so...

That sounds about right. That humidistat likely triggers high speed mode on your HRV. When you mentioned the HRV filters were clean, that would suggest it has not run much. Moisture is one way to control an HRV, but modern building science suggests that interior air quality is of primary...

I'd look at the Renewaire Premium L instead as it is more efficient with a larger core. If you're doing a cold climate mini-split, you'll find the Premium L efficiency 88%@60 CFM quite compelling at the price. It's not the "smartest" ERV out there but easy enough to balance etc. with two ECM...

In zone 7, winter drying will be a thing if you are ventilating correctly. An ERV will help to ameliorate this, and in summer will work better to limit humidity as well. I'd spend some time over at greenbuildingadvisor.com In summer, if you are doing any cooling an HRV will be doing nothing...

First of all, it’s an ERV you want, and yes, you can put a 30-40 CFM stale air return in your bath, outside the shower. Install an ERV boost switch in your bath as well for high stink loads :) HRVs don’t make a whole lot of sense any longer for any climate given current ErV heat exchange core...