Rental properties in Japan often run on propane gas rather than city gas. Propane tends to cost noticeably more than city gas, and many renters wonder whether they can do anything about it. This article explains the difference between propane gas and city gas, whether a rental tenant can switch gas providers, and how to cancel a propane contract.
What's the Difference Between Propane Gas and City Gas?
Homes in Japan run on one of two types of gas: propane gas (LP gas) or city gas. Understanding the difference between the two helps you make sense of your utility bill and your options as a tenant.
Characteristics of Propane Gas
Propane gas is a form of liquefied petroleum gas (LPG) delivered to each home in cylinders rather than through underground pipes. There are two delivery models: centralized propane, where cylinders serve an entire block or complex, and individual propane, where each unit has its own set of tanks.
- Heavier than air, so a leak pools near the floor rather than rising
- Roughly twice the heating value of city gas for the same volume
- Not limited by pipeline infrastructure, so it is available anywhere in the country, including rural areas with no gas mains
- Priced under a "free pricing" system, meaning each supplier sets its own rates
Readers familiar with the US or UK market will recognize this setup: it works much like bulk propane or LPG delivery to a rural home or a mobile home park, where a supplier truck refills an above-ground tank on a schedule rather than gas flowing continuously through a municipal main. In both countries, as in Japan, propane pricing is unregulated and left to the supplier's discretion, which is exactly why shopping around matters so much.
Characteristics of City Gas
City gas is derived mainly from natural gas and delivered through underground pipes. Three major utilities, Tokyo Gas, Osaka Gas, and Toho Gas, together account for roughly 70% of the nation's city gas supply.
- Lighter than air, so a leak collects near the ceiling rather than the floor
- Only available in areas where the pipe network has been built out
- Priced as a regulated utility service, so rates are comparatively stable
This is the direct equivalent of piped natural gas in the US and UK, supplied by utilities such as National Grid, CenterPoint Energy, or British Gas. Just as in Japan, coverage depends entirely on whether a gas main reaches the property, which is why many rural and suburban homes in North America and large parts of the UK countryside still rely on propane or heating oil instead.
Why Should Gas Type Matter When Choosing a Rental?
Because the type of gas a property uses has a major effect on monthly utility costs, it is an important factor to weigh when choosing a rental.
Why Propane Gas Costs More
Propane tends to cost more than city gas in Japan for three main reasons.
- Free pricing: each supplier can set its own price independently, with no regulator setting a ceiling
- Delivery costs: transporting and swapping cylinders requires labor and vehicles that a piped supply does not need
- Free-loan equipment contracts: the cost of stoves, water heaters, and other equipment supplied to the property at no upfront charge is often folded into the price of the gas itself
As a rule of thumb, monthly propane bills run 1.5 to 2 times higher than city gas bills for comparable usage.
American and British renters will find this gap familiar. Government energy statistics in both countries have long shown propane running well above the cost of natural gas per unit of heat delivered, and UK households on bottled LPG or a supplier's off-grid tank routinely pay a multiple of what a piped natural gas customer pays for the same warmth. The "free-loan equipment" model, where a supplier provides a tank or appliances in exchange for a locked-in, above-market gas contract, also has a close cousin in the propane tank leases offered by many US suppliers, which bind the customer to that company for as long as the tank sits in the yard.
Can You Change Your Propane Gas Provider in a Rental Property?
In short, a tenant cannot switch propane suppliers on their own initiative. The contract with the gas company belongs to the property owner, not the tenant.
How to Talk to Your Landlord
If you feel your gas bill is too high, the first step is to raise the issue with your landlord or property manager and ask them to review the rate or consider switching suppliers. It helps to bring:
- Data comparing your current gas rate with the going rate in the area
- Quotes from other propane suppliers
- A clear signal that high gas costs could be a reason for you to move out
Steps to Switch Propane Providers (For Owners)
- Review the terms of the current contract, including whether there is a free-loan equipment agreement and how much of its term remains
- Get quotes from multiple propane suppliers
- Confirm whether an early-termination penalty applies, and how much it would cost
- Sign with the new supplier and have the changeover work carried out
This mirrors what an American landlord goes through when a propane tank lease comes up for renewal: check the fine print on the tank agreement, solicit competing bids from other bulk-delivery companies, and confirm any early buyout fee before switching haulers.
Can You Switch From Propane to City Gas?
If the property sits inside a city gas service area, switching from propane to city gas is possible. That said, the following conditions must be met.
- The property must be located within a city gas service area
- A gas main must already run beneath the road in front of the property
- Someone must be able to cover the cost of the service connection work (typically 100,000 to 200,000 yen)
- Someone must be able to cover the cost of replacing gas appliances with city-gas-compatible models
This is essentially the same calculation a US homeowner faces when a natural gas main is finally extended down their street: the utility typically charges a hookup or "main extension" fee, and every propane appliance in the house, from the water heater to the range, has to be converted or replaced, since propane and natural gas burn at different pressures and are not interchangeable without conversion kits.
How Do You Cancel a Propane Gas Contract?
Canceling a propane contract in Japan follows a set process.
The Cancellation Process
- Notify your current gas company that you intend to cancel (contact information appears on your meter reading slip or receipt)
- Set a cancellation date (allow roughly one to ten days' notice)
- Arrange a date for the supplier to remove the tanks and meter
- Cancellation is complete once the equipment has been removed
Switching to a New Gas Company
When switching to a new supplier, the new company will usually handle the cancellation notice and removal request to the old supplier on your behalf. Once you submit an application form and a letter of authorization, the rest is taken care of for you.
This is broadly similar to how switching a US propane account works: sign with the new hauler, and it is common for the new company to coordinate removal of the old supplier's tank, since in the US the tank itself is usually owned by the supplier rather than the homeowner, just as the cylinders in Japan belong to the propane company rather than the tenant.
Tips for Cutting Your Gas Bill
Even when changing suppliers is not an option, everyday habits can still bring your propane bill down.
- Set your water heater to a reasonable temperature: avoid setting it higher than you actually need
- Reduce how often you reheat the bath: coordinate bath times across the household
- Install a water-saving showerhead: can cut gas use for hot water by 20 to 30%
- Use the bath reheating function efficiently: a bathtub insulation cover helps retain heat
These are the same levers a propane household in the US or UK would pull: turning down the water heater thermostat, batching hot showers or baths, fitting low-flow fixtures, and insulating hot water storage all cut propane consumption regardless of which country's tank sits in the yard.
Frequently Asked Questions (FAQ)
Q. Can a tenant change the propane gas company?
A. Not on their own, as a rule. Since the contract with the gas company belongs to the landlord, a tenant who wants to switch needs to raise it with the landlord first.
Q. How much more expensive is propane than city gas per month?
A. It varies by region and supplier, but propane typically runs 1.5 to 2 times the cost of city gas.
Q. Is there a penalty for canceling a propane contract?
A. If a free-loan equipment agreement is in place, canceling before the contract term ends may trigger a penalty covering the remaining balance.
Q. What can you do in an area where city gas isn't available?
A. Get quotes from several propane suppliers and choose one with a fair rate. Switching to all-electric appliances is another option worth considering.
