How to Install Holtop Canada’s Ductless ERV – Step-by-Step Guide for Builders
- grant6934
- May 30
- 3 min read
As building codes tighten and demand grows for energy-efficient, airtight homes, proper ventilation has become essential—not optional. For builders working on modular, prefab, and space-conscious projects, Holtop Canada’s ductless ERV (Energy Recovery Ventilator) offers a smart, efficient solution with no ducting required.
In this post, we’ll walk you through the installation process and show how this wall-mounted system delivers reliable fresh air, comfort, and humidity control. If you're new to Holtop or looking for a better way to meet Step Code and IAQ requirements, this is for you.
What Is a Ductless ERV?
Unlike traditional systems that require complex duct layouts and mechanical rooms, a ductless ERV is a compact, wall-mounted unit that exchanges stale indoor air with fresh outdoor air—while recovering heat and regulating moisture.
This makes it ideal for:
Modular and prefab homes
Tiny homes and laneway houses
Retrofits and space-limited builds
Builders aiming for better indoor air quality and energy efficiency
Holtop Canada’s ductless ERV offers up to 82% sensible heat recovery and is CSA-certified, giving builders confidence in both performance and code compliance.
What You’ll Need
Before starting installation, gather the following:
Mounting template (included with unit)
Drill, anchors, and screws
Pencil and level
Hole saw for wall core drilling
Weather-sealed intake/exhaust covers
Electrical connection (plug or hardwired)
How to Install Holtop's Ductless ERV: Step-by-Step Installation Instructions
Learn how to install Holtop's Ductless ERV by following these simple instructions:
1. Unbox the Unit
Carefully remove the ERV and inspect all components. Inside, you’ll find the mounting hardware, filters, and installation guide.
2. Position and Mark
Use the mounting template to mark the install location on an exterior-facing wall. Make sure it’s level and clear of obstructions.
3. Drill Exterior Openings
Drill holes through the wall for the intake and exhaust ducts. Use a hole saw with proper diameter and ensure you maintain the correct angle for airflow.
4. Install Ducting and Weather Covers
Slide intake and exhaust ducts through the wall and secure them on the exterior. Install weather hoods or grilles to prevent moisture and pests from entering.
5. Mount the ERV
Align the unit with the pre-marked template and secure it with the provided mounting screws.
6. Wire or Plug In
Depending on the version, either plug in the unit or complete hardwiring based on your local code. Consult a licensed electrician if needed.
7. Filter and Power On
Insert filters, close the panel, and turn on the system. Adjust settings as required and test airflow.

Why Builders Are Choosing Holtop’s Ductless ERV
This system was designed with Canadian builders in mind—where space, speed, and performance all matter.
Here’s why Holtop ductless ERVs are gaining traction across BC and beyond:
No Ductwork Needed - Skip the design and installation of bulky duct systems. This makes installation faster and cuts down mechanical planning time—ideal for tight spaces and clean aesthetics.
Fast, Simple Install - Units can typically be mounted and operational in under a day. Great for reducing labor costs and keeping timelines on track.
Perfect for Tight Spaces - Wall-mounted design fits into small utility areas, mechanical closets, or even directly in the living space. Great for tiny homes, MURBs, and modular projects.
High Performance - With up to 82% sensible heat recovery efficiency, it delivers serious energy savings—meeting or exceeding Step Code and passive design targets.
Built for Humid Climates - In places like coastal BC, controlling moisture is key. Holtop’s ERVs manage both heat and humidity, helping prevent condensation and mold.
CSA-Certified for Canada - Builders don’t have to guess about code compliance. With CSA approval, you know you’re meeting performance and safety standards.
For builders looking to simplify ventilation without sacrificing performance, Holtop Canada’s ductless ERV delivers. From ease of installation to high-efficiency airflow, this unit offers a practical solution for modern homes. Whether you're working on a small space or an airtight build, it's time to consider ditching the ducts.
📩 Need help choosing the right model? Contact Holtop Canada for specs, support, or bulk orders.
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