If you have spent any time around rural propane, you have heard the term, and it sounds stranger than it is. A propane pig tank is simply the nickname for a horizontal cylindrical propane tank, the squat white vessel you see resting on legs in farmyards, cabin clearings, and work sites across British Columbia. The shape earned the name long ago, and it stuck. For a lot of off-grid and rural properties in the Fraser Valley and beyond, this is the tank that keeps the heat on and the appliances running.
This guide explains what a propane pig tank actually is, the common sizes, when one is the right choice, how filling and level monitoring work, and the siting and safety basics every owner should know. If you are weighing a tank for a cabin, a farm, or a temporary site, this is the plain-language primer.
What Is a Propane Pig Tank?
A propane pig tank is a horizontal, cylindrical above-ground storage tank with rounded ends, mounted low on a set of short legs or saddles. Functionally it is identical to any other above-ground propane tank, it just lies on its side instead of standing upright. The horizontal profile keeps it stable, makes it easy to deliver and set on uneven rural ground, and gives it a low visual footprint compared to a tall vertical tank.
The “pig” name is pure folk shorthand, a nod to the rounded, low-slung body. You will hear the same tank called a horizontal tank, a bulk tank, or simply by its capacity. Whatever you call it, the job is the same: store a useful volume of propane on site so appliances have a steady supply between deliveries.
Common Propane Pig Tank Sizes
Pig tanks come in a range of capacities, and the right one depends on your appliances and how often you want a fill:
- 375 L (roughly 100 US gallons) — the popular small pig, ideal for a cabin, a single heating appliance, a shop, or a seasonal property. Big enough to be practical, small enough to place almost anywhere.
- 500 gallon — a true workhorse for full-time rural homes using propane for heat, hot water, and cooking, or for farms running multiple appliances.
- 1000 gallon — large homes, busy farms, commercial sites, and operations that want fewer deliveries across a hard winter.
Sizing is a balance. Too small and you are scheduling frequent deliveries and risking a run-out in a cold snap. Too large and you tie up capital and yard space you do not need. Our overview of propane tank sizes walks through matching capacity to real usage.
When You Actually Need a Pig Tank
A propane pig tank earns its place anywhere the natural-gas grid does not reach or where you need storable, portable energy. The most common situations include:
- Off-grid and rural homes that rely on propane for furnace heat, hot water, ranges, and clothes dryers.
- Cabins and seasonal properties where a 375 L tank covers intermittent use without overcommitting.
- Farms and acreages running grain dryers, barn heat, shop heaters, and backup generators.
- Construction and temporary sites that need on-site fuel for heat or equipment before permanent services exist.
- Backup and standby power, where a propane generator needs a reliable on-site reservoir.
If your property checks any of those boxes, a horizontal pig tank is very likely the practical answer. For the most remote spots, what matters just as much as the tank is a supplier who will actually drive to you, the same way we handle propane delivery to remote BC farms.
Filling and Monitoring Your Tank
A pig tank is filled to about 80% of capacity, leaving headroom for the propane to expand safely with temperature. You can run on one of two models: scheduled auto-fill, where your supplier tracks usage and degree-days and tops you up before you run low, or will-call, where you watch the gauge and call for a fill at around 30%.
Modern remote monitoring takes the guesswork out entirely. A wireless level sensor on the tank reports the propane level to your supplier automatically, so refills are dispatched on time without anyone trudging out to read a dial. We cover how this works in our pieces on 375 L pig tank monitoring and remote propane tank monitoring. For a cabin you visit occasionally, or a remote tank you would otherwise have to physically check, monitoring is the difference between reliable heat and an unwelcome cold-weather surprise.
Owning Versus Renting a Pig Tank
You can either buy your tank outright or lease it from your propane supplier, and both are common:
- Renting or leasing means a low upfront cost, with the supplier handling installation, maintenance, and the periodic recertification the tank requires. The trade-off is a monthly or annual rental fee and, usually, a commitment to buy fuel from that supplier.
- Owning removes the rental fee and frees you to shop fuel, but you carry the upfront purchase, the maintenance, and the responsibility for keeping the tank certified and in good standing.
For most cabin and rural-home owners, renting keeps things simple. Higher-volume users who plan to stay put for years sometimes find ownership pays off. A good supplier will lay out both honestly for your situation.
Siting and Safety Basics
A pig tank has to be placed correctly, and in British Columbia that placement follows rules enforced by Technical Safety BC. Tanks need minimum clearances from buildings, property lines, windows, and ignition sources, and they must sit on stable, level ground, often a poured pad or compacted base, so they do not shift. The fill point and regulator must stay accessible for the delivery truck.
Beyond siting, the basics are straightforward: keep the area around the tank clear of brush and debris, never store combustibles against it, know where your shutoff is, and have the system leak-tested by a qualified technician after any work. The Canadian Propane Association publishes homeowner safety guidance worth reading. Handled properly, a propane pig tank is a safe, low-maintenance fixture that quietly does its job for decades.
How a Pig Tank Gets Delivered and Set
One of the practical advantages of a propane pig tank is how straightforward it is to place. Because the tank is horizontal and self-supporting, it does not need the deep foundation a tall vertical tank can require. For most residential and cabin installs, the supplier sets the tank on a level, stable base, often a poured concrete pad, compacted gravel, or precast blocks rated for the load, positioned to meet the required clearances and to keep the fill point reachable from the delivery truck.
A smaller 375 L tank can frequently be delivered and set in a single visit, while larger 500 and 1000 gallon tanks may need more site prep and equipment to position. After placement, a qualified technician connects the regulator and service line, leak-tests the system, and commissions it before the first fill. From there, the tank becomes a fixture you rarely think about, refilled on a schedule or by remote monitoring. When the time comes to move or remove a pig tank, the same horizontal design that makes it easy to deliver makes it easy to lift out, which is part of why it remains the default tank for so many BC properties.
Frequently Asked Questions
Why is it called a pig tank?
It is an informal nickname for a horizontal cylindrical propane tank, inspired by the rounded, low-slung shape. The same tank is also called a horizontal tank or a bulk tank, and is referred to by its capacity, such as a 375 L or 500 gallon tank.
How big a pig tank do I need?
It depends on your appliances and usage. A 375 L tank suits a cabin or a single appliance, a 500 gallon tank fits a full-time rural home using propane for heat and hot water, and a 1000 gallon tank serves large homes, farms, and commercial sites that want fewer deliveries.
Should I rent or buy my tank?
Renting has a low upfront cost and the supplier handles maintenance and recertification, which suits most homeowners. Owning removes the rental fee but puts maintenance and certification on you. The best choice depends on your usage and how long you plan to stay.
Can I monitor my pig tank remotely?
Yes. A wireless level sensor reports your tank level to your supplier automatically, so refills are scheduled before you run low, which is especially valuable for cabins and remote properties you do not visit often.
Get the Right Tank for Your Property
A propane pig tank is one of the simplest, most dependable pieces of equipment on a rural property, once it is sized, sited, and supplied correctly. Match the capacity to your real usage, decide between renting and owning, add remote monitoring if your tank is out of the way, and partner with a supplier who will reliably make the drive. Do that and the tank simply disappears into the background, exactly as it should.
Not sure which size fits your cabin, home, or farm? Explore our propane services or reach out and we will help you spec, place, and supply the right pig tank for your property.
