Generator Installation Guide: Sizing, Placement, and Cost

Understanding Generator Installation Before You Buy

Electricity is one of those quiet miracles you never think about until it stops. The lights are simply on, the fridge simply hums, the furnace simply works, right up until a storm rolls through the Fraser Valley and the whole neighbourhood goes dark at once. In that sudden silence, with the fridge warming and the furnace dead, a generator stops being an abstraction and becomes the most interesting object you own.

But there’s a real gap between owning a generator and having one that actually protects you. A generator sitting in a box, or worse, one wired into a home the wrong way, is not peace of mind. It’s a false sense of it. This guide walks through the three things that decide whether a generator earns its keep, which are sizing, placement, and cost, along with the safety pieces that tie them all together.

Why the Setup Matters More Than the Machine

The generator itself is the easy part. You can buy one this afternoon. What separates a reliable backup from an expensive paperweight, or a genuine hazard, is everything around it: how it’s sized to your home, where it sits, how it connects to your electrical system, and whether the work was done to code.

• A generator sized wrong either wastes money or leaves you cold.
• Placement is governed by safety rules, not personal preference.
• The connection to your home is where the real danger lives.
• Fuel choice shapes how long you can actually run.
• Permits and proper installation are what make it legal and safe.

Where BDT Electric Fits In

At BDT Electric, generator installation is one of the ways we help Fraser Valley homeowners sleep through storms. Our licensed electricians handle the sizing calculation, the code-compliant placement, the transfer switch, and the permits, so that when the power fails, your generator does exactly what you bought it to do.

The Bottom Line: a good generator installation is far more about the setup than the machine, and getting the sizing, placement, and connection right is what turns a generator into genuine peace of mind.

The First Real Decision: Portable or Standby

Before anything else, there’s a fork in the road, and which way you go shapes every decision that follows. It comes down to portable generators versus permanently installed standby units, and they’re really two different answers to two different questions.

What Each One Actually Delivers

A portable generator is the smaller, movable machine you roll out when you need it. It runs on gasoline or propane, it needs to be started and refuelled by hand, and it powers what you plug into it or, when properly connected, a limited set of your home’s circuits. It costs less upfront and it asks more of you in the moment.

A standby generator is permanently installed outside your home, wired into your electrical system, and fed by natural gas or a large propane supply. It starts itself the instant the power fails, whether you’re home or not, and runs until the power returns. It costs more and asks almost nothing of you once it’s in.

• Portable units cost less, offer flexibility, and require hands-on operation and refuelling.
• Standby units cost more, run automatically, and protect your home whether or not you’re there.
• Portable generators must never be run indoors or in a garage, because their exhaust is deadly.
• Standby generators handle larger loads and longer outages without your involvement.

Choosing Based on What You’re Protecting

The right answer depends on what you’re trying to keep running and for how long. If you want to keep a few essentials alive through the occasional short outage and you don’t mind the manual work, a portable unit may suit you. If you rely on a well pump for water, have medical equipment, travel often, or simply want the outage to be a non-event, a standby generator installation is the answer that actually delivers that.

Think of it this way: a portable generator asks you to show up during the emergency, while a standby generator promises you’ll barely notice there was one.

Generator Installation Sizing: How Much You Actually Need

Here’s where the title’s first promise gets real, and where the most expensive mistakes get made in both directions. Size the generator too small and it can’t carry your home when you need it. Size it too large and you’ve paid for capacity you’ll never use, and you’ll burn more fuel running it. The right size is a calculation, not a guess.

Whole-Home or Just the Essentials

The first question is how much of your home you actually want to back up. There are two honest approaches, and neither is wrong.

• Whole-home backup runs your house more or less as normal, lights, heat, appliances, and all, which is the most comfortable option and the most expensive.
• Essential-circuits backup covers the things that matter most, like your furnace, fridge, well pump, and a few key outlets, at a lower cost and a smaller generator.
• The middle path backs up essentials plus a few comforts, which is where many homeowners land.

How an Electrician Calculates Your Real Load

A proper sizing isn’t a matter of glancing at your house and naming a number. An electrician looks at what your home actually draws, and particularly at the appliances that demand the most, because those quietly set the requirement.

• Well pumps draw a heavy surge when they start, far more than they use while running.
• Electric heat and ranges are among the hungriest loads in any home.
• Air conditioning adds a significant summer demand and a large starting surge.
• Everything running at once is the scenario the sizing has to survive, not the average moment.

Guessing high wastes your money on both the unit and the fuel it drinks. Guessing low leaves you sitting in a cold house wondering why the generator can’t keep up. The calculation is what gets you the machine that fits.

Remember: good generator installation sizing is about matching the machine to your home’s real demand, which is a number worth calculating rather than estimating.

Fuel Choices and What Suits a BC Home

What your generator burns shapes how long it can run, how much you have to think about it, and what the installation involves. Three fuels dominate, each with honest tradeoffs.

The Three Main Options

• Natural gas connects to your existing gas line and offers effectively unlimited run time, since you’re never refuelling. Where it’s available, it’s often the easy answer, and it makes standby generators nearly worry-free during long outages.
• Propane stores well for years, burns cleanly, and suits homes without a natural gas connection. It ties a large tank to your property and needs refilling, but it’s a strong option for rural properties.
• Diesel is efficient and powers many larger units, though storage, refuelling, and cold-weather considerations make it more common for bigger or commercial setups than typical homes.

Why Natural Gas Is Often the Simple Answer

For a home already connected to natural gas, a standby generator running off that supply removes the single biggest hassle of backup power, which is fuel. You never store it, never refill it, and never run out mid-outage. When natural gas isn’t available at the property, propane usually becomes the sensible choice, giving you long storage life and independence from a gas connection. Which one fits your home is part of what a proper evaluation sorts out.

Think of it this way: the best fuel for your generator installation is the one that matches your property, and for many BC homes already on gas, that choice makes itself.

Placement: Where a Generator Can and Can’t Go

Here’s the promise in the title that people underestimate most. Where a generator sits is not a matter of taste or tucking it out of sight. It’s governed by safety code, and those rules exist for reasons that matter a great deal.

The Rules and Why They Exist

A running generator produces exhaust, and that exhaust contains carbon monoxide, which is invisible, odourless, and dangerous. Placement rules keep those fumes away from where they could enter your home and harm the people inside. This is why the location is dictated by code rather than convenience.

• Clearance from windows, doors, and vents keeps exhaust from drifting back indoors.
• Distance from the house itself is specified to keep fumes and heat at a safe remove.
• Access for maintenance and airflow has to be preserved around the unit.
• Proximity to the gas supply and electrical panel affects both cost and practicality.
• Noise and neighbours matter too, since a running generator is not silent and property lines deserve consideration.

Why This Isn’t a Place to Improvise

Homeowners sometimes have a spot in mind, tucked beside the house or hidden behind a fence, that turns out to violate clearance rules. The code isn’t being fussy. Those distances are the difference between exhaust dispersing harmlessly and exhaust finding its way to a bedroom window. A proper generator installation places the unit where it’s both safe and legal, which is occasionally a conversation about compromise, but never one worth skipping.

Keep In Mind: generator installation placement is set by safety code rather than preference, and those clearances exist to keep exhaust where it belongs, which is far away from the people inside.

The Transfer Switch, and Why It’s Not Optional

If there’s one component most homeowners don’t know to ask about, it’s this one, and it happens to be the piece that separates a safe setup from a genuine hazard.

What a Transfer Switch Does

A transfer switch is the device that safely connects your generator to your home’s electrical system. It isolates your house from the utility grid while the generator runs, then switches back when utility power returns. That isolation is the whole point, and it’s not negotiable.

Connecting a generator to your home without a proper transfer switch, sometimes called backfeeding, is both dangerous and illegal. It can send power back down the utility lines, which can injure or kill the line workers trying to restore your power. It can also damage your home and your generator when the grid comes back. The transfer switch exists to make all of that impossible.

• Manual transfer switches require you to flip them by hand when the power fails, which suits many portable setups.
• Automatic transfer switches sense the outage and switch over on their own, which is what makes standby generators hands-off.
• Backfeeding without a switch endangers utility workers and is never an acceptable shortcut.

Why This Component Defines the Whole Job

You can buy a fine generator and still end up with a dangerous setup if the connection to your home is done wrong. The transfer switch is the line between a system that protects your family and one that threatens people you’ll never meet. It’s a large part of why generator installation is professional work rather than a weekend project, and it’s not a corner anyone should cut.

If you want a generator installation with the transfer switch and connection done safely and to code, BDT Electric serves Abbotsford, Chilliwack, and communities across the Fraser Valley. Get in touch or call us at (604) 754-4344 and we’ll make sure your backup power protects your home without endangering anyone.

What Generator Installation Actually Costs

Cost is right there in the title, so let’s talk about it honestly. There’s no single price for a generator installation, because the number is built from several moving parts, and a quote handed over without anyone seeing your home is a guess dressed up as a figure.

What Actually Drives the Number

• The size of the unit. A larger generator carrying more of your home costs more than a modest one covering essentials.
• Portable versus standby. A permanently installed standby system sits at the higher end, while a portable setup with a manual transfer switch sits lower.
• Fuel type and supply work. Tapping into natural gas or setting a propane tank adds cost, and the state of your existing gas supply matters.
• Distance and complexity. How far the unit sits from your panel and gas supply, and how difficult the runs are, shapes the labour.
• The transfer switch. Automatic switches cost more than manual ones and are part of what makes standby systems seamless.
• Permits, electrical work, and any panel upgrades. These are part of a legitimate installation and belong in the honest number.

Why Ranges Are Honest and Exact Quotes Aren’t

Anyone can throw a single number at you to win the job. The truth is that a small portable setup and a whole-home automatic standby system sit at genuinely different ends of the range, with plenty of ground between them depending on the choices above. A trustworthy quote comes after someone has seen your home, understood your load, and looked at your gas and electrical situation. That’s not evasion. It’s the only way to give you a number that means anything.

Think of it this way: the cost of generator installation is a range, not a sticker price, and the homeowners who get honest numbers are the ones who let someone see the actual house first.

Why Generator Installation Isn’t a DIY Job

It’s worth being clear about this, because generators are sold in stores and it’s easy to assume the installation is a matter of following instructions. It isn’t, and the reasons are the same ones that run through this whole guide.

What the Work Actually Involves

• Gas connections. Tying a generator into natural gas or propane is work with real consequences if done wrong, and it belongs to qualified hands.
• Electrical tie-ins. Connecting the unit to your home’s electrical system is licensed work for good reason.
• Transfer switch wiring. The single most safety-critical part of the job, and the one with the least room for error.
• Permits and inspections. A proper installation is permitted and inspected, which protects you, your insurance, and anyone who works on your utility lines.

The Honest Case for a Professional

None of this is meant to frighten you. It’s meant to be straight with you. A generator touches two of the more consequential systems in your home, gas and electricity, and ties them together in a way that has to be right. The stakes aren’t hypothetical. They involve carbon monoxide, backfed power lines, and equipment that runs unattended. A licensed electrician doing a permitted generator installation is how all of that gets handled correctly, and it’s a reasonable place to let expertise do its job rather than a weekend effort.

Remember: generator installation sits at the meeting point of gas and electrical work, and that combination is exactly why it belongs to licensed professionals rather than a weekend effort.

Living With a Standby Generator

Once a standby unit is properly installed, it settles into your life as something you mostly forget about, which is the highest compliment you can pay backup power. Here’s the honest picture of what to expect.

What Ownership Actually Looks Like

• It runs itself. When the power fails, an automatic system starts on its own, carries your home, and shuts down when utility power returns, often before you’ve fully registered the outage.
• It tests itself. Standby units run brief periodic self-tests so you know they’ll work when needed, rather than discovering a problem during the storm.
• Maintenance is real but modest. Like any engine, it needs periodic servicing, oil, filters, and the occasional professional check, to stay dependable.
• Fuel is mostly hands-off on natural gas. Running from your gas line means never thinking about refuelling, while propane means keeping an eye on the tank.
• The confidence is the real product. The quiet knowledge that your home stays lit while the neighbourhood goes dark is what you actually bought.

The Quiet Value of Not Noticing

There’s a particular contentment in sleeping through a storm that knocks out half the street. You wake up, the coffee maker works, the fridge is cold, and you learn about the outage from a neighbour rather than from your own dark house. That non-event is the whole point. Good backup power doesn’t announce itself. It simply keeps the ordinary running when the extraordinary hits, and then fades back into the background of a life you get to keep living normally.

Keep In Mind: a well-done generator installation is measured by how little you have to think about it, and the best outcome is an outage you barely noticed.

Making Sense of Generator Installation

Backup power is one of those investments that does nothing at all, right up until the moment it does everything. A generator is only ever as good as the way it was sized, placed, and connected, which is why this guide spent its time there rather than on the machine itself. Get those three things right, along with the transfer switch that ties them together safely, and you’ve bought yourself years of not worrying about the lights.

Starting From a Good Place

You don’t need to become an expert in load calculations, clearance codes, or transfer switches. What you need is an honest evaluation of your home, a generator sized to what you actually want to protect, placement that satisfies safety code, and permitted, professional work by people who take the stakes seriously. Everything good about backup power, the reliability, the safety, the peace of mind, follows from that foundation.

The homeowners who are happiest with their backup power are rarely the ones who found the cheapest unit or the fastest install. They’re the ones who got it sized and set up right, once, and then got to forget about it until the night it quietly saved their weekend.

When you’re ready to talk about generator installation for your home, BDT Electric is here. Our licensed electricians serve Abbotsford, Chilliwack, and the wider Fraser Valley, and we’d rather set your backup power up properly from the start than fix a rushed job later. Reach us at (604) 754-4344 and let’s keep your lights on when the next storm rolls through.