Drew Tozer
@drewtozer.bsky.social
Installing heat pumps for comfortable, healthy, sustainable homes in Toronto, Canada.
Every HVAC contractor is a climate company.
https://foundryheatpumps.ca
Every HVAC contractor is a climate company.
https://foundryheatpumps.ca
Reposted by Drew Tozer
@drewtozer.bsky.social made one of the best videos on heat pumps I’ve seen so far youtu.be/4Hq1dAoKZsQ?...
Heat Pumps, Explained (And Why Everyone’s Switching)
YouTube video by Drew Tozer
youtu.be
November 8, 2025 at 3:24 AM
@drewtozer.bsky.social made one of the best videos on heat pumps I’ve seen so far youtu.be/4Hq1dAoKZsQ?...
Reposted by Drew Tozer
I'm a little jealous - it's like @drewtozer.bsky.social condensed all the wisdom from @heatpumped.org in a single video.
If you're looking to get a heat pump for your house, this covers many of the key points. Give him a follow if you aren't already! www.youtube.com/watch?v=4Hq1...
If you're looking to get a heat pump for your house, this covers many of the key points. Give him a follow if you aren't already! www.youtube.com/watch?v=4Hq1...
Heat Pumps, Explained (And Why Everyone’s Switching)
YouTube video by Drew Tozer
www.youtube.com
July 23, 2025 at 9:06 PM
I'm a little jealous - it's like @drewtozer.bsky.social condensed all the wisdom from @heatpumped.org in a single video.
If you're looking to get a heat pump for your house, this covers many of the key points. Give him a follow if you aren't already! www.youtube.com/watch?v=4Hq1...
If you're looking to get a heat pump for your house, this covers many of the key points. Give him a follow if you aren't already! www.youtube.com/watch?v=4Hq1...
Reposted by Drew Tozer
If you’ve got heatpump questions, @drewtozer.bsky.social ‘s new heatpump explainer video will probably answer them!
youtu.be/4Hq1dAoKZsQ?...
youtu.be/4Hq1dAoKZsQ?...
Heat Pumps, Explained (And Why Everyone’s Switching)
YouTube video by Drew Tozer
youtu.be
July 26, 2025 at 1:47 AM
If you’ve got heatpump questions, @drewtozer.bsky.social ‘s new heatpump explainer video will probably answer them!
youtu.be/4Hq1dAoKZsQ?...
youtu.be/4Hq1dAoKZsQ?...
Reposted by Drew Tozer
This is the best heat pump explainer video I've ever seen!
Great work Drew Tozer!
If you like it, bookmark it and share when you see an opportunity!
#2wayac #heatpump #HVAC
bit.ly/BestHPexplai...
Great work Drew Tozer!
If you like it, bookmark it and share when you see an opportunity!
#2wayac #heatpump #HVAC
bit.ly/BestHPexplai...
Heat Pumps, Explained (And Why Everyone’s Switching)
What's a Heat Pump? | Simple Animated Explainer 👉 Wondering how a heat pump works? In this short, animated video, we break down the basics of heat pumps--and explain why so many homeowners are switching. In this video, you’ll learn: What a heat pump is How heat pumps work in both summer and winter How heat pumps get heat from cold air How they compare to furnaces and air conditioners Why they're better for home comfort Thinking about installing a heat pump? Visit https://www.foundryheatpumps.ca to get more information. Or buy a copy of Drew Tozer's Amazon #1 Best Seller, Feel-Good Homes: https://www.amazon.ca/dp/1781339163/ #heatpumps #howheatpumpswork #energyefficienthomes #sustainableheating #greenerhomes #hvacexplainer #airsourceheatpump #homecomfort #cleanenergy #netzero #electrification #decarbonization
bit.ly
July 21, 2025 at 5:57 PM
This is the best heat pump explainer video I've ever seen!
Great work Drew Tozer!
If you like it, bookmark it and share when you see an opportunity!
#2wayac #heatpump #HVAC
bit.ly/BestHPexplai...
Great work Drew Tozer!
If you like it, bookmark it and share when you see an opportunity!
#2wayac #heatpump #HVAC
bit.ly/BestHPexplai...
To tackle the myths and misconceptions around heat pumps, we need content that’s accurate and easy to share. That means short and engaging—so we made an explainer video that’s accurate, easy to share, and shows why so many homeowners are making the switch.
📣 Who will you share it with?
📣 Who will you share it with?
Heat Pumps, Explained (And Why Everyone’s Switching)
YouTube video by Drew Tozer
www.youtube.com
July 21, 2025 at 3:04 PM
To tackle the myths and misconceptions around heat pumps, we need content that’s accurate and easy to share. That means short and engaging—so we made an explainer video that’s accurate, easy to share, and shows why so many homeowners are making the switch.
📣 Who will you share it with?
📣 Who will you share it with?
We're designing heat pump rebates wrong.
(It's a mistake to require minimum specs.)
We don't need better equipment, we need better installs.
How do we incentive better installation practices?
With objective commissioning and reports.
What happens when rebates are based on equipment specs? 🤔
(It's a mistake to require minimum specs.)
We don't need better equipment, we need better installs.
How do we incentive better installation practices?
With objective commissioning and reports.
What happens when rebates are based on equipment specs? 🤔
June 27, 2025 at 1:48 PM
We're designing heat pump rebates wrong.
(It's a mistake to require minimum specs.)
We don't need better equipment, we need better installs.
How do we incentive better installation practices?
With objective commissioning and reports.
What happens when rebates are based on equipment specs? 🤔
(It's a mistake to require minimum specs.)
We don't need better equipment, we need better installs.
How do we incentive better installation practices?
With objective commissioning and reports.
What happens when rebates are based on equipment specs? 🤔
A semi-detached is half a building—but we're shocked when it needs half the heating.
"Connected" homes (semi-detached, rowhouses, etc.) have a shared wall with a neighbour, and it's sharing heat through it.
If a detached home needs 3 tons of heating, why wouldn't a semi- need a 1.5-ton heat pump?
"Connected" homes (semi-detached, rowhouses, etc.) have a shared wall with a neighbour, and it's sharing heat through it.
If a detached home needs 3 tons of heating, why wouldn't a semi- need a 1.5-ton heat pump?
Neighbor-Source Heat Pump
xkcd.com
June 11, 2025 at 1:02 PM
A semi-detached is half a building—but we're shocked when it needs half the heating.
"Connected" homes (semi-detached, rowhouses, etc.) have a shared wall with a neighbour, and it's sharing heat through it.
If a detached home needs 3 tons of heating, why wouldn't a semi- need a 1.5-ton heat pump?
"Connected" homes (semi-detached, rowhouses, etc.) have a shared wall with a neighbour, and it's sharing heat through it.
If a detached home needs 3 tons of heating, why wouldn't a semi- need a 1.5-ton heat pump?
Rip out an old and busted furnace.
Install a fully electric heat pump. New hotness.
The before and after is oddly satisfying.
Install a fully electric heat pump. New hotness.
The before and after is oddly satisfying.
June 10, 2025 at 1:29 PM
Rip out an old and busted furnace.
Install a fully electric heat pump. New hotness.
The before and after is oddly satisfying.
Install a fully electric heat pump. New hotness.
The before and after is oddly satisfying.
A single-stage 6-ton oil furnace...that's 4x too big.
On the coldest week of the year, it'll run 15-min per hour.
This is where heat pumps shine. It's the only HVAC system that can be properly sized to match the heating needs of this house.
On the coldest week of the year, it'll run 15-min per hour.
This is where heat pumps shine. It's the only HVAC system that can be properly sized to match the heating needs of this house.
June 3, 2025 at 2:00 PM
A single-stage 6-ton oil furnace...that's 4x too big.
On the coldest week of the year, it'll run 15-min per hour.
This is where heat pumps shine. It's the only HVAC system that can be properly sized to match the heating needs of this house.
On the coldest week of the year, it'll run 15-min per hour.
This is where heat pumps shine. It's the only HVAC system that can be properly sized to match the heating needs of this house.
Electrification means systemic changes to the industry.
(Not convincing HVAC contractors one at a time.)
Here's my wishlist of systemic HVAC changes:
1. ACs to heat pumps (no one-way ACs)
2. Heat loads on smart thermostats
3. Objective commissioning
Those are three ways to move the industry.
(Not convincing HVAC contractors one at a time.)
Here's my wishlist of systemic HVAC changes:
1. ACs to heat pumps (no one-way ACs)
2. Heat loads on smart thermostats
3. Objective commissioning
Those are three ways to move the industry.
May 20, 2025 at 1:27 PM
Electrification means systemic changes to the industry.
(Not convincing HVAC contractors one at a time.)
Here's my wishlist of systemic HVAC changes:
1. ACs to heat pumps (no one-way ACs)
2. Heat loads on smart thermostats
3. Objective commissioning
Those are three ways to move the industry.
(Not convincing HVAC contractors one at a time.)
Here's my wishlist of systemic HVAC changes:
1. ACs to heat pumps (no one-way ACs)
2. Heat loads on smart thermostats
3. Objective commissioning
Those are three ways to move the industry.
Heat pumps aren’t for everyone.
They’re a tool to make comfortable, healthy, sustainable homes—but they need to be sized and installed properly.
I’d rather see a gas furnace than a poorly installed heat pump in the wrong house, because we need great homeowner experiences to #electrifyeverything.
They’re a tool to make comfortable, healthy, sustainable homes—but they need to be sized and installed properly.
I’d rather see a gas furnace than a poorly installed heat pump in the wrong house, because we need great homeowner experiences to #electrifyeverything.
May 15, 2025 at 1:27 PM
Heat pumps aren’t for everyone.
They’re a tool to make comfortable, healthy, sustainable homes—but they need to be sized and installed properly.
I’d rather see a gas furnace than a poorly installed heat pump in the wrong house, because we need great homeowner experiences to #electrifyeverything.
They’re a tool to make comfortable, healthy, sustainable homes—but they need to be sized and installed properly.
I’d rather see a gas furnace than a poorly installed heat pump in the wrong house, because we need great homeowner experiences to #electrifyeverything.
Cheap heat pump installers are like high-interest loans.
It's a great deal if you ignore the downside risk.
If you make an investment that pays a high interest rate (like a high-yield bond), it's a good inestment as long as the other party continues to make payments.
It's a great deal if you ignore the downside risk.
If you make an investment that pays a high interest rate (like a high-yield bond), it's a good inestment as long as the other party continues to make payments.
May 8, 2025 at 12:49 PM
Cheap heat pump installers are like high-interest loans.
It's a great deal if you ignore the downside risk.
If you make an investment that pays a high interest rate (like a high-yield bond), it's a good inestment as long as the other party continues to make payments.
It's a great deal if you ignore the downside risk.
If you make an investment that pays a high interest rate (like a high-yield bond), it's a good inestment as long as the other party continues to make payments.
Heat pump installers aren't like car mechanics.
Once you pick a contractor, you're locked in.
Homeowners underestimate that risk.
Budget contractors are great when everything goes well—but I got a call from an unlucky homeowner who isn't having that experience.
Once you pick a contractor, you're locked in.
Homeowners underestimate that risk.
Budget contractors are great when everything goes well—but I got a call from an unlucky homeowner who isn't having that experience.
May 5, 2025 at 7:22 PM
Heat pump installers aren't like car mechanics.
Once you pick a contractor, you're locked in.
Homeowners underestimate that risk.
Budget contractors are great when everything goes well—but I got a call from an unlucky homeowner who isn't having that experience.
Once you pick a contractor, you're locked in.
Homeowners underestimate that risk.
Budget contractors are great when everything goes well—but I got a call from an unlucky homeowner who isn't having that experience.
Even in tight spaces, you can do a big return air drop and a thick filter.
If you install premium equipment poorly, it'll perform poorly and fail early. Increasing the size of the return air drop and filter surface area can significantly improve heat pump performance. The goal is happy homeowners.
If you install premium equipment poorly, it'll perform poorly and fail early. Increasing the size of the return air drop and filter surface area can significantly improve heat pump performance. The goal is happy homeowners.
April 30, 2025 at 2:25 PM
Even in tight spaces, you can do a big return air drop and a thick filter.
If you install premium equipment poorly, it'll perform poorly and fail early. Increasing the size of the return air drop and filter surface area can significantly improve heat pump performance. The goal is happy homeowners.
If you install premium equipment poorly, it'll perform poorly and fail early. Increasing the size of the return air drop and filter surface area can significantly improve heat pump performance. The goal is happy homeowners.
COME TO MY BIRTHDAY PARTY!... I mean, uh, heat pump webinar.
Today at noon. It's everything you need to know about heat pumps and building science with none of the jargon. I promise not to say "thermodynamics" even once.
Today at noon. It's everything you need to know about heat pumps and building science with none of the jargon. I promise not to say "thermodynamics" even once.
FREE webinar on Wednesday (my birthday!). A group of people listening to me talk about heat pumps: I couldn't ask for a better gift!
No industry jargon, no technical details, no mention of the refrigerant cycle or thermodynamics.
Just simple answers to "what are heat pumps, and why should I care?"
No industry jargon, no technical details, no mention of the refrigerant cycle or thermodynamics.
Just simple answers to "what are heat pumps, and why should I care?"
Feel-Good Homes: How to choose the right heat pump
GreenHome Institute Weekly Free CE Webinar Presents:
rb.gy
April 30, 2025 at 12:57 PM
COME TO MY BIRTHDAY PARTY!... I mean, uh, heat pump webinar.
Today at noon. It's everything you need to know about heat pumps and building science with none of the jargon. I promise not to say "thermodynamics" even once.
Today at noon. It's everything you need to know about heat pumps and building science with none of the jargon. I promise not to say "thermodynamics" even once.
It’s also my birthday… and my wife’s birthday! Lots of reasons to celebrate.
If you're looking for a good reason to celebrate it's the 80th anniversary of the death of the vain, dumb, ignorant, arrogant mass murdering racist Adolf Hitler - who died knowing that everything he had built was crumbling to dust around him.
April 30, 2025 at 10:59 AM
It’s also my birthday… and my wife’s birthday! Lots of reasons to celebrate.
FREE webinar on Wednesday (my birthday!). A group of people listening to me talk about heat pumps: I couldn't ask for a better gift!
No industry jargon, no technical details, no mention of the refrigerant cycle or thermodynamics.
Just simple answers to "what are heat pumps, and why should I care?"
No industry jargon, no technical details, no mention of the refrigerant cycle or thermodynamics.
Just simple answers to "what are heat pumps, and why should I care?"
Feel-Good Homes: How to choose the right heat pump
GreenHome Institute Weekly Free CE Webinar Presents:
rb.gy
April 28, 2025 at 1:55 PM
FREE webinar on Wednesday (my birthday!). A group of people listening to me talk about heat pumps: I couldn't ask for a better gift!
No industry jargon, no technical details, no mention of the refrigerant cycle or thermodynamics.
Just simple answers to "what are heat pumps, and why should I care?"
No industry jargon, no technical details, no mention of the refrigerant cycle or thermodynamics.
Just simple answers to "what are heat pumps, and why should I care?"
A homeowner 1,700+ km from me is using the book as an easy first step to learn about right-sized HVAC and home performance before upgrading.
I have nothing to sell him, but it increases the odds that he has a remarkable experience with heat pumps and pushes the electrification movement forward.
I have nothing to sell him, but it increases the odds that he has a remarkable experience with heat pumps and pushes the electrification movement forward.
April 9, 2025 at 12:30 PM
A homeowner 1,700+ km from me is using the book as an easy first step to learn about right-sized HVAC and home performance before upgrading.
I have nothing to sell him, but it increases the odds that he has a remarkable experience with heat pumps and pushes the electrification movement forward.
I have nothing to sell him, but it increases the odds that he has a remarkable experience with heat pumps and pushes the electrification movement forward.
Check out my thoughts on electrification, the HVAC industry, changing business models, and a framework to build a personal brand & influence.
It also goes deep into a business-baseball analogy. Find out why PE-backed contractors are the Oakland Athletics of the HVAC industry. 🤔
It also goes deep into a business-baseball analogy. Find out why PE-backed contractors are the Oakland Athletics of the HVAC industry. 🤔
April 4, 2025 at 7:17 PM
Check out my thoughts on electrification, the HVAC industry, changing business models, and a framework to build a personal brand & influence.
It also goes deep into a business-baseball analogy. Find out why PE-backed contractors are the Oakland Athletics of the HVAC industry. 🤔
It also goes deep into a business-baseball analogy. Find out why PE-backed contractors are the Oakland Athletics of the HVAC industry. 🤔
This contractor has a 90% failure rate on heat pumps.
Heat pumps require more expertise and attention-to-detail to install properly. Traditional furnaces and ACs were comparatively simple to install, so contractor quality didn't matter as much. But it matters with heat pumps.
Heat pumps require more expertise and attention-to-detail to install properly. Traditional furnaces and ACs were comparatively simple to install, so contractor quality didn't matter as much. But it matters with heat pumps.
April 3, 2025 at 3:55 PM
This contractor has a 90% failure rate on heat pumps.
Heat pumps require more expertise and attention-to-detail to install properly. Traditional furnaces and ACs were comparatively simple to install, so contractor quality didn't matter as much. But it matters with heat pumps.
Heat pumps require more expertise and attention-to-detail to install properly. Traditional furnaces and ACs were comparatively simple to install, so contractor quality didn't matter as much. But it matters with heat pumps.
My book (Feel-Good Homes) launched!
I'm giving away a Kindle to celebrate.
Everyone deserves a comfortable, healthy, sustainable home.
But electrification and home performance are hard.
So, "Feel-Good Homes" is a simple first step.
I made it short and conversational.
It's for average homeowners.
I'm giving away a Kindle to celebrate.
Everyone deserves a comfortable, healthy, sustainable home.
But electrification and home performance are hard.
So, "Feel-Good Homes" is a simple first step.
I made it short and conversational.
It's for average homeowners.
March 25, 2025 at 12:32 PM
My book (Feel-Good Homes) launched!
I'm giving away a Kindle to celebrate.
Everyone deserves a comfortable, healthy, sustainable home.
But electrification and home performance are hard.
So, "Feel-Good Homes" is a simple first step.
I made it short and conversational.
It's for average homeowners.
I'm giving away a Kindle to celebrate.
Everyone deserves a comfortable, healthy, sustainable home.
But electrification and home performance are hard.
So, "Feel-Good Homes" is a simple first step.
I made it short and conversational.
It's for average homeowners.
How cold is too cold for a heat pump? Many heat pumps are rated down to -30’C.
The last time it was -30’C in Toronto was one *billion* seconds ago (January 1994).
The last time it was -30’C in Toronto was one *billion* seconds ago (January 1994).
February 18, 2025 at 10:38 PM
How cold is too cold for a heat pump? Many heat pumps are rated down to -30’C.
The last time it was -30’C in Toronto was one *billion* seconds ago (January 1994).
The last time it was -30’C in Toronto was one *billion* seconds ago (January 1994).
"You don't need people's opinions on a fact."
Science doesn't care about opinions.
John Oliver’s original video was about climate change.
But there’s been a rise of "do your own research".
So now it applies to more topics than ever.
Above political ideology, I stand with science.
Science doesn't care about opinions.
John Oliver’s original video was about climate change.
But there’s been a rise of "do your own research".
So now it applies to more topics than ever.
Above political ideology, I stand with science.
February 14, 2025 at 1:48 PM
"You don't need people's opinions on a fact."
Science doesn't care about opinions.
John Oliver’s original video was about climate change.
But there’s been a rise of "do your own research".
So now it applies to more topics than ever.
Above political ideology, I stand with science.
Science doesn't care about opinions.
John Oliver’s original video was about climate change.
But there’s been a rise of "do your own research".
So now it applies to more topics than ever.
Above political ideology, I stand with science.
@shreyassudhakar.com and @energysmartwv.bsky.social A homeowner asked to replace their "cold-air heat pump" with a "hot+cold heat pump".
It gave me #2wayAC vibes.
It gave me #2wayAC vibes.
February 12, 2025 at 6:59 PM
@shreyassudhakar.com and @energysmartwv.bsky.social A homeowner asked to replace their "cold-air heat pump" with a "hot+cold heat pump".
It gave me #2wayAC vibes.
It gave me #2wayAC vibes.
'Comfort advisors' don't care about comfort.
They swap old, oversized furnaces with new, oversized furnaces in 'no heat' emergencies. They're just salespeople slinging furnaces.
A real 'comfort advisor' would run a heat load, investigate the comfort problem, and recommend a right-sized heat pump.
They swap old, oversized furnaces with new, oversized furnaces in 'no heat' emergencies. They're just salespeople slinging furnaces.
A real 'comfort advisor' would run a heat load, investigate the comfort problem, and recommend a right-sized heat pump.
February 11, 2025 at 6:19 PM
'Comfort advisors' don't care about comfort.
They swap old, oversized furnaces with new, oversized furnaces in 'no heat' emergencies. They're just salespeople slinging furnaces.
A real 'comfort advisor' would run a heat load, investigate the comfort problem, and recommend a right-sized heat pump.
They swap old, oversized furnaces with new, oversized furnaces in 'no heat' emergencies. They're just salespeople slinging furnaces.
A real 'comfort advisor' would run a heat load, investigate the comfort problem, and recommend a right-sized heat pump.