For HRV and ERV installers
Measured requests, and the tools to finish the job.
HouseExhale homeowners measure their bedrooms with a CO₂ monitor before they ask for a quote. You get the rooms, the readings and a room-by-room airflow plan, then the tools to propose the unit, record the airflow and show the result.
Free during the founding pilot. Already a member or applied? Sign in to your dashboard.
- Measured, not guessed. Each bedroom’s typical night against the 800 ppm goal, over at least three nights, and what they already tried.
- Sized before you visit. The fresh air each bedroom needs, split room by room, and the daytime minimum for the home.
- Proof that sells the next job. Reviews only from homeowners who hired you, and their measured before and after.
1 · The request
Every request comes measured
This is the example home’s request, built by the app from its nights. Contact details appear once you accept.
- The place, the home, and how many companies it went to
- Each room’s typical night, people, door, and any free fix tried
- The fresh air each bedroom needs, at night and by day
- A starting room-by-room airflow plan, and the kind of job: ducts, a just-tightened house, no ducts, a condo, or a past customer
- Eight things the homeowner asked your quote to include
- Once you accept: their contact details, and any photos and floor plan they added
Open the example and try accepting
The planner behind every plan is free for any job, on Scan and plan tools.
Denver, CO · ZIP 80210
2,100 sq ft house · 2 levels · 2 bedrooms · 1 bathroom · Central forced-air ducts · Access: a basement or crawlspace
- Ducts, or room for them A whole-house system with ducts
Sent to 2 companies, including you.
What they measured
- Primary bedroom1,620 ppm
Typical night (overnight level) over 3 nights, 2 people, door closed. The goal is 800 or less: 820 above.
Tried: crack a window, 1,240 ppm.
- Kid’s bedroom1,180 ppm
Typical night (overnight high) over 1 night, 1 person, door closed. The goal is 800 or less: 380 above.
What the bedrooms need
About 85 cfm of fresh air at night, so about 51 cfm reaches the bedrooms if roughly 60% of it goes there. Daytime minimum: 60 cfm continuous (2024 IRC Table M1505.4.3(1)).
Planning figures from the bedrooms’ sleepers; your room-by-room design replaces them.
- Primary bedroom: 2 people, about 34 cfm
- Kid’s bedroom: 1 person, about 17 cfm
Room by room
85 cfm in at night and 85 cfm out; 60 cfm by day for the whole home.
| Room | Air | Night | Day |
|---|---|---|---|
| Primary bedroom2 people | In | 35 cfm | 25 cfm |
| Kid’s bedroom1 person | In | 20 cfm | 15 cfm |
| Bathroom | Out | 85 cfm | 60 cfm |
| Home office | In | 15 cfm | 10 cfm |
| Living room | In | 15 cfm | 10 cfm |
From HouseExhale’s room planner: 17 cfm per sleeper, the rest balanced by the wet rooms. Your design and measured airflow replace it.
Units they may ask about
From HouseExhale’s reviewed list: enough certified airflow for this home. Not a recommendation; quote what you’d install and why.
- Zehnder ComfoAir Q350 (HRV or ERV), 195–201 cfm
- RenewAire EV Premium (ERV), 119–218 cfm
- Panasonic FV-11ES1 (ERV), 110 cfm
They asked that the quote include
- The exact unit you recommend and why, with its HVI-certified airflow at the duct pressure you expect
- Expected airflow to each bedroom on the normal setting, and where stale air is pulled from
- Measured airflow balancing (supply and exhaust within about 10%, or a deliberate offset with the reason written down) and a signed airflow sheet
- Where the outdoor hoods would go
- How the unit handles our coldest weather (and whether it’s the cold-climate version, if there is one)
- The controls: normal, boost, and any humidity or CO₂ control
- Permit and inspections (including any required ventilation airflow test), patching, and your labor warranty
- Equipment and labor priced separately
2 · Your proposal
Check the unit before the homeowner does
Name the exact model you’d install. The homeowner’s dashboard checks its certified airflow against their measured bedrooms, and you see the same check before you send.
- Exact models, matched to their HVI certification
- Price and scope if you like; your full quote still goes to them directly
- A model the check doesn’t know still goes; they’re told to ask for its HVI number
Front Range Fresh Air proposes: Zehnder CAQ350 ERV
$10,400 as quoted · Measured airflow at each room after the install · Sent Oct 22
Small ducts to the bedrooms, office and living room, stale air from the bathroom, balanced and measured at every grille.
HouseExhale’s check: Fits your numbers
- HVI-certified (HVI 2005163).
- Delivers 201 cfm at 0.4 in. of duct pressure and 201 cfm at 0.5 in.: enough for your 85 cfm night target, with room to spare for real-world ducts.
- Turns down to 41 cfm, so it can run at your 60 cfm daytime rate.
- HVI-rated sensible recovery efficiency: 83% at 32°F outdoors (at 95 cfm).
A screen of published, certified data, not a design. Your installer confirms duct pressure, room-by-room airflow and controls, then measures airflow after install.
Airflow measured October 19, 2026 by Front Range Fresh Air (Marco)
Zehnder CAQ350 ERV · at night speed · measured with a flow hood
| Room | Air | Plan | Measured | Off by |
|---|---|---|---|---|
| Primary bedroom | In | 35 cfm | 37 cfm | +6% |
| Kid’s bedroom | In | 20 cfm | 19 cfm | -5% |
| Bathroom | Out | 85 cfm | 88 cfm | +4% |
| Home office | In | 15 cfm | 15 cfm | 0% |
| Living room | In | 15 cfm | 13 cfm | -13% |
In: 84 cfm. Out: 88 cfm. Balanced within 5%. Rooms more than 10% off the plan are marked.
Main bedroom door undercut 3/4 in. for the return path.
3 · After the install
Hand over the airflow sheet
Record the airflow you measured at each room against the plan. The homeowner keeps it with the house papers, and it counts as your signed sheet.
- Rows come from the plan; you fill in what you measured
- Rooms more than 10% off the plan are marked, and in and out are totalled
- Print it, or let the homeowner find it on their dashboard
4 · Your listing
A listing that sells the next job
Homeowners compare companies in a short list, then open the full card, like this one. Everything on it is checked or comes from homeowners who hired you.
- Reviews only from homeowners who hired you through HouseExhale, with your reply
- Their measured before and after, on one scale with the 800 goal
- Your license, insurance and airflow measuring, named once we’ve checked them
- Install photos, a sample airflow sheet, how fast you answer and how far out you’re booking
Companies are listed with those whose airflow measuring we’ve checked first, then A to Z.
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5 · Your work, your way
Only the jobs you take
Tick the kinds of job you do. Homeowners see you only for requests whose every kind you take, and a past customer can ask you back with their measurements attached.
- Ducts, or room for themHomes with ducts, or room for small ones
- Just made tighterHomes just air sealed, insulated or built
- No ductsHomes without ducts: room-by-room units or a compact ERV
- Condo or apartmentCondos and apartments
- Past customerPast customers asking you back: service, rechecks, balancing
6 · What it costs
Free to join, free to answer
Requests, your listing and every tool on this page are free. During the founding pilot, so is everything else. After it, pay only for extras: more of your crew, your own branding and exports, or a sponsored spot.
Free
Everything a homeowner sees, and everything you need to answer and win the job.
$0 alwaysRequests are never charged for
- Measured requests from homeowners near you, for the jobs you take
- Your listing, with checks, reviews and measured results
- The proposal check and the airflow sheet
- Homeowners’ photos and floor plans once you accept
- A team of up to 2, with alerts
Pro
For growing teamsFor companies with a crew and their own systems.
$490 a yearSaves $98 on monthly
Everything in Free, plus:
- A team of up to 20
- Your logo on the proposals and airflow sheets you print
- Exports of your requests, for Jobber, Housecall Pro or a spreadsheet
Apply: Pro’s tools are free nowMembers have everything free during the founding pilot.
Sponsored card
Be seen first by homeowners in your area, clearly labelled.
From $990 a year per area
By the area’s size: $990 a year for a small area (under 400,000 people), $1,490 for a standard one, $2,490 for a large one (over 1 million people).
- One card marked “Sponsored” above the list, for homeowners in the area whose job you take
- At most 3 sponsors in an area, shown in turn
- Never changes the list, its order, “Pick for me”, checks or reviews
Ask about your areaSponsored cards start after the pilot, in areas where homeowners are asking.
Founding members, who join during the pilot, pay half for the first 12 months of their first Pro plan and their first sponsored card. Nothing a homeowner sees depends on a plan: paying never changes the list of companies, its order, “Pick for me”, our checks or anyone’s reviews. We’ll tell members in writing at least 30 days before anything costs money. Plan terms
7 · The sponsored card
One labelled card, above the list
A sponsor’s listing shows once more, in a card marked “Sponsored”, to homeowners in its area whose job it takes. The list underneath stays exactly as it was.
- Labelled “Sponsored”, with the line “Pays HouseExhale to be shown here.”
- Never ticked for the homeowner. The list, its order and “Pick for me” never depend on it
- At most 3 sponsors in an area, shown in turn
- For members taking requests, with airflow measuring checked and no request waiting past 2 business days
- Homeowners are told, in one line, that some companies pay and that it changes nothing in the list
Sponsored cards start after the founding pilot, at $99, $149 or $249 a month per area, by the area’s size. Founding members will pay half for their first 12 months.
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Where sponsored cards show
To start, 19 areas by county, on Colorado’s Front Range and in southern New England, where homeowners are measuring their bedrooms. Each is priced by its size. Point at an area, choose one from the list, or look up a ZIP code.
Each area is a county, or a few counties next to each other, with the ZIP codes homes there use. Its price depends on how many people live there: $99 a month for a small area (under 400,000 people), $149 for a standard one, $249 for a large one (over 1 million people). At most 3 sponsors per area, shown in turn. Areas open where homeowners are measuring; ask about yours.
How joining works
- Apply
About five minutes: your company, where you work, your recent HRV and ERV jobs, and how you measure airflow.
- We check
A real business doing this work, licensed where your state requires it, insured, two recent jobs, and airflow measured after every install.
- Requests arrive
By email and in your dashboard, from homeowners in the ZIP codes you serve, for the jobs you take. Accept or pass within 2 business days.
- Follow through
Accepting shows the homeowner’s details and pictures. Visit, propose the unit, quote, install, and record the airflow. They recheck the rooms.
What we ask
- Answer each request within 2 business days: accept or pass.
- Quote what the request asks for, or say which items you don’t do.
- Measure airflow after the install and give the homeowner a signed airflow sheet.
- Use the homeowner’s details only for their project. No reselling, no marketing lists.
- Tell us how each request ended: visit, quote, won or not chosen.
A homeowner can send the same request to up to three companies, and the request says how many.
What does it cost?
Does paying change where we show up?
How many requests will I get?
How do homeowners pick companies?
Who sees the homeowner’s details?
Do I need an account to answer?
Can my team use it?
For insulation and air-sealing contractors
Tightened a house? Leave a card.
Air sealing keeps heat in, and the air people breathe out overnight too. Partners hand the homeowner a HouseExhale card with their own code, so the bedrooms get checked. Free, and unpaid both ways.
- Energy auditors and weatherization programs leave a card at the final test-out.
- Insulation and window crews leave one when the job is done.
- Their code counts visits and app starts. It never tells them who the homeowner was.
Join the founding pilot
Five minutes to apply. We’ll check the details and write back.