Is your water heater on the fritz? Getting lukewarm showers or finding rusty water in the bottom of your tea cup? A faulty water heater is bad news. But before you call the plumber, have you considered doing the water heater replacement yourself?
If you’re short on time, here’s a quick answer to your question: Yes, with the right skills, tools, and preparation, installing a water heater on your own is absolutely doable for a handy homeowner.
In this comprehensive DIY guide, we’ll walk through everything you need to know to replace your water heater, from picking the right model to proper installation and safety tips. You’ll learn about sizing, fuel types, venting, water and gas connections, electrical requirements, and step-by-step installation instructions.
Choosing the Right Water Heater
When it comes to installing a water heater yourself, one of the most important steps is choosing the right one for your needs. Here are some factors to consider:
Consider fuel type (gas vs electric)
The first decision you’ll need to make is whether you want a gas or electric water heater. Gas water heaters are typically more cost-effective in the long run, as they have lower operating costs. On the other hand, electric water heaters are generally easier to install and require less maintenance.
Consider your budget and energy preferences before making a decision.
Determine the appropriate tank size
The next step is to determine the appropriate tank size for your household. The size of the tank will depend on the number of people in your home and their hot water usage. As a general rule of thumb, a 40-gallon tank is suitable for a family of four.
However, if you have a larger family or frequently use hot water for activities like washing clothes or dishes, you may need a larger tank.
Think about energy efficiency ratings
Energy efficiency is an important consideration when choosing a water heater. Look for models with high energy efficiency ratings, as they will help you save on your utility bills. The Energy Star website provides a comprehensive list of water heaters with their energy efficiency ratings, making it easier for you to make an informed decision.
Decide on venting (atmospheric or power)
Another factor to consider is the type of venting your water heater will require. Atmospheric venting uses natural convection to expel combustion gases, while power venting uses a fan to remove these gases.
Power venting is more flexible in terms of installation location, but it requires access to electricity. Consider your home’s layout and the availability of power sources before deciding on the venting system.
Pick additional features like heat pumps or WiFi controls
Lastly, you may want to explore additional features that can enhance the performance and convenience of your water heater. Heat pumps, for example, can help reduce energy consumption by transferring heat from the air to the water.
WiFi controls allow you to adjust the temperature and monitor usage remotely. Keep in mind that these features may come at an additional cost, so consider your needs and budget accordingly.
By carefully considering these factors, you can choose the right water heater for your DIY installation project and ensure a reliable supply of hot water for your household.
Water Heater Installation Process
Installing a water heater yourself can be a rewarding and cost-saving endeavor. However, it’s important to follow the correct steps to ensure a safe and successful installation. Here is a complete DIY guide to help you through the process.
1. Shut off water and gas supply
The first step in installing a water heater is to shut off the water and gas supply. This can usually be done by turning off the main water valve and the gas valve. It’s important to make sure all power sources are turned off before beginning any work.
2. Drain and disconnect old unit
Next, you’ll need to drain and disconnect the old water heater. Start by attaching a garden hose to the drain valve and emptying the tank. Once the tank is empty, disconnect the water and gas lines from the unit.
3. Prepare new location and clearances
Before installing the new water heater, make sure the location is suitable and meets all necessary clearances. Clearances typically include a certain distance from walls, ceilings, and other combustible materials. Consult the manufacturer’s instructions for specific clearance requirements.
4. Install shutoff valves
Installing shutoff valves is an important step in the water heater installation process. These valves will allow you to easily shut off the water supply to the unit if needed. Install a shutoff valve on the cold water line entering the heater and another on the hot water line leaving the heater.
5. Connect water lines
Once the shutoff valves are in place, you can connect the water lines to the new water heater. Use a flexible connector to attach the cold water line to the inlet and the hot water line to the outlet. Make sure all connections are tight and secure.
6. Install relief valve
The relief valve is a crucial safety feature of a water heater. It helps release excess pressure and prevent the tank from exploding. Install the relief valve on the designated port on the side or top of the water heater.
Make sure the discharge pipe is properly connected and directed towards a safe location.
7. Connect gas line and venting
If your water heater is gas-powered, you’ll need to connect the gas line and venting. Follow the manufacturer’s instructions for properly connecting the gas line and venting system. It’s important to ensure proper ventilation to prevent the buildup of dangerous gases.
8. Connect electrical supply
If your water heater requires an electrical connection, make sure to follow the manufacturer’s instructions for proper wiring. If you’re not confident in your electrical skills, it’s recommended to hire a professional electrician to ensure a safe and code-compliant installation.
9. Install insulation blanket
An insulation blanket can help improve the energy efficiency of your water heater. If desired, install an insulation blanket according to the manufacturer’s instructions. Be sure not to cover any vents, controls, or the relief valve.
10. Run start-up procedure and check for leaks
Once the installation is complete, follow the manufacturer’s instructions to run the start-up procedure. This usually involves turning on the water supply and gas or electricity. Check for any leaks around the connections and fix them immediately if found.
Remember, safety should always be the top priority when installing a water heater. If you’re unsure about any step or don’t feel comfortable with the installation process, it’s best to consult a professional plumber or contractor.
Safety Tips
When it comes to installing a water heater yourself, safety should always be your top priority. Here are some important safety tips to keep in mind:
Use caution when handling gas lines
If you have a gas water heater, it’s crucial to exercise extreme caution when working with gas lines. Make sure to turn off the gas supply and use a gas leak detector to check for any leaks before you begin the installation process.
If you detect a gas leak, do not proceed with the installation and contact a professional plumber immediately.
Check for gas leaks
Even if you don’t have a gas water heater, it’s still important to check for gas leaks in your home. Gas leaks can be dangerous and pose a serious risk to your health and safety. Invest in a gas leak detector and regularly check for any signs of gas leaks, such as a rotten egg smell or hissing sounds near gas appliances.
Protect against scalding
Hot water can cause burns and scalds, especially for young children and the elderly. To prevent accidents, make sure to set your water heater’s temperature to a safe level, usually around 120 degrees Fahrenheit (49 degrees Celsius).
Additionally, consider installing anti-scald devices on your faucets and showerheads to further protect against accidental burns.
Install a drain pan
A drain pan is a simple yet effective safety measure that can help prevent water damage in case of a leak or malfunction. Place a drain pan under your water heater to catch any water that may leak out.
This will not only protect your floors and belongings but also alert you to any potential issues that need to be addressed.
Keep combustibles clear
Water heaters generate heat, so it’s important to keep combustible materials, such as boxes, papers, and cleaning supplies, at a safe distance. Make sure there is at least a two-foot clearance around the water heater to reduce the risk of fire hazards.
Review manuals and local codes
Before you begin the installation process, thoroughly read the manufacturer’s manual for your specific water heater model. Familiarize yourself with the installation instructions and ensure that you have the necessary tools and materials.
Additionally, research and comply with local building codes and regulations to ensure that your DIY installation meets all safety requirements.
Remember, if you ever feel unsure or uncomfortable about any aspect of installing a water heater yourself, it’s always best to consult with a professional plumber. Safety should never be compromised when it comes to working with gas lines and electrical systems.
Cost Comparison: DIY vs Professional
Breakdown of DIY costs
Installing a water heater yourself can be a cost-effective option, especially if you have some plumbing knowledge and experience. Here is a breakdown of the costs you can expect when taking on the DIY route:
- Cost of the water heater: This will vary depending on the size, brand, and type of water heater you choose. On average, a standard 40-gallon gas water heater can cost between $300 and $800.
- Additional materials: You will need various plumbing fittings, pipes, connectors, and insulation materials. These can add an extra $50 to $100 to your overall cost.
- Tools: If you don’t already have the necessary tools, you may need to invest in a pipe wrench, adjustable wrench, pipe cutter, and other basic plumbing tools. This could cost you around $50 to $100.
Keep in mind that these are just rough estimates, and prices may vary depending on your location and the specific water heater you choose.
Average pro installation costs
If you decide to hire a professional plumber to install your water heater, you can expect to pay an average of $500 to $1500 for the installation. This cost includes the labor, materials, and any necessary permits.
The final price will depend on factors such as the complexity of the installation, your location, and the type of water heater you have.
It’s worth noting that some plumbers offer bundled services, which may include removing your old water heater, disposing of it, and providing a warranty for the installation. These additional services can add value to the overall cost.
When to call a pro
While installing a water heater yourself can save you money, it’s important to recognize when it’s best to call a professional. Here are a few situations where hiring a pro is recommended:
- Complex installations: If you have a unique or challenging installation scenario, such as a tankless water heater or a location that requires extensive modifications, it’s best to leave it to the experts.
- Lack of experience: If you have little to no plumbing experience, it’s wise to hire a professional to avoid any potential mistakes or accidents that could occur during the installation process.
- Time constraints: Installing a water heater can be time-consuming, especially if you’re not familiar with the process. If you’re in a hurry or have a busy schedule, it’s more convenient to let a professional handle the installation.
Ultimately, the decision to install a water heater yourself or hire a professional should be based on your comfort level, expertise, and budget.
For more information on water heater installation costs and professional services, you can visit reputable plumbing websites such as Angie’s List or HomeAdvisor.
Conclusion
Installing a water heater on your own takes time, patience, and mechanical know-how, but can save you money compared to hiring a professional. With proper planning and safety precautions, a DIY water heater replacement is definitely achievable.
Use this comprehensive guide to learn all the steps involved and decide if tackling the project on your own is right for your skill level. And remember to always prioritize safety when working with gas, water, and electricity.
With some perseverance and this advice, you’ll have a reliable, efficient water heater warming your home again in no time.