Tag: Hydronic heating

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Heating & cooling

Why you should consider underfloor heating

In the colder months, keeping warm in a drafty house is often difficult to do. Although you may be tempted to purchase a space heater and make do that way, installing floor heating may be a better option for your home. Under-floor heating is becoming more and more popular and can be powered by several different energy sources. There are several different types available and plenty of benefits to this kind of heating system. Rather than endure the winter months huddled under a blanket, consider the benefits of floor heating.

Different underfloor heating options

This process allows for a heating system to be placed into the floor. This allows warm air to circulate in the home, creating a warm feeling on your feet. There are many methods to doing this, including the use of natural gas, geothermal heat, solar energy, and off-peak electricity. In general, there are three main options that fall under the category of either hydronic or electric. 

Electric floor heating systems

The electric floor heating system is actually the most popular system to date. The popularity comes from two things: easier installation and more places to purchase it from. This kind of floor heating uses electric cables to distribute heat from the underside of your choice of flooring. The heat rises through the flooring, keeping your feet nice and toasty. If you get an electric bill, this floor may work for you, but it may not be such a good choice if you are using a pre-paid meter.

The main forms of electric floor heating systems that are used are in-slab and in-screed. In-slab is exactly what the name suggests. The cables are stored in slabs, and the slabs are heated, driving the heat to the surface. In screed heating systems actually use slabs as well, but the cables are tied around them instead of being run within them like the in-slab systems.

Electric under-floor heating / Source: Shutterstock

Hydronic floor heating systems

The hydronic floor heating system uses hot water instead of electricity to warm the floor and the room. The water is heated in the boiler and then distributed through a slab system under the flooring. This is much more economical to run since the system uses gas instead of electricity. Just like the electric floor heating system, the hydronic floor heating system uses an in-slab or in-screed heating method.

The one thing you don’t have to worry about with either floor heating system is mould or allergen buildup. The cables, cords and tubes are fully closed in, so there’s no chance of condensation or steam escaping them and causing mould to form under the flooring. Both systems are relatively quiet, so you won’t even hear them running, but perhaps the best news of all is that they are both relatively economical to run during the winter as they heat up quite quickly (although the electric floor heating system is much faster).

Benefits

Comfort

One of the biggest advantages of floor heating is that it helps you more evenly distribute a comfortable level of heat throughout the rooms of your house. Instead of pushing heated air through your home, floor heating systems produce an even heat that naturally rises to the ceiling, thus ensuring that the whole room is at a perfect temperature. Using wall-mounted thermostats and special sensors, you can heat up any room in as little as 30 minutes.

A healthier home 

Those who suffer from allergies won’t need to worry about a heating system that kicks up dust mites or recycles stale air and redistributes it around the house. Underfloor-heating avoids all of this, meaning it will not contribute to any hay-fever or allergic reactions.

Contact local heating experts

Affordable 

Believe it or not, floor heating systems are actually much more affordable than they sound. They can run off of any type of energy, whether its electricity, gas or solar power. Additionally, floor heating systems run very efficiently, only needing a small amount of energy in order to maintain the proper temperature in a room. Find out how much underfloor heating costs in our guide here.

Aesthetics 

Another great benefit of floor heating is that it’s completely hidden from the casual eye. Rather than having unsightly pipes or vents popping up all over your home, floor heating is concealed within your floorboards or your home’s foundation. It makes your rooms look more appealing and also gives you the freedom to decorate easier without the need to worry about whether your furniture will block a vent or heating element.

Flooring options

The use of a heating system in your home is an excellent one, and it is not nearly as complex as many think. In fact, this type of flooring can be used under many types of flooring very safely. Once the floor covering is removed and the new system is put into place, you can use virtually any floor covering on top, including:

Bathrooms are a great room for underfloor heating / Source: JNL Designs

Easy installation and maintenance

Under-floor heating systems are usually easy to install and keep running. Under-floor heating can be installed as your home is being built or retrofit into older homes. This heating source does not interfere with floor plans, does not take up any of your precious square footage in your home, and is easy to maintain over a long period of time. 

Is it right for the whole home?

If it is being installed whilst building a new home and it will be used as your primary heating source, then it is absolutely right. Installing it throughout the entire home will help save you money, as an installation company can come out and install the whole lot at once. If you are renovating, there is nothing stopping from you putting floor heating into only certain rooms if you wish. When renovating your bathroom, it is ideal. However, in order to save money, it is best to leave it out of unnecessary rooms such as the laundry etc.

Insulation 

It’s a good idea to have insulation installed with your underfloor heating system, so you can increase its efficiency. It will also lower the operating costs of heating. During the heating installation process, you can also have insulation fitted. It’s beneficial to install it in your roof and walls, too. An insulation expert can assist you in determining the correct insulation for your needs. Your local council can also supply you with recommendations.

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Heating & cooling

What is hydronic heating?

Hydronic heating is one a popular method of heating a household by circulating boiling water through closed pipes. It works by heating water in a boiler until it becomes pressurised in specially designed pipes that then radiate heat where you need it. The warmth from hydronic heating all relates to how warm the water is. The water needs to be heated to make the room warm, which is done before it reaches the pipes.

The radiators will last indefinitely if properly maintained, and homeowners can also get heated towel rails for their bathrooms that use hydronic heating.

Here, we’ll give you the complete run down on hydronic heating, so you can decide if it’s the right heating solution for your home.

Source: Shutterstock

Benefits of hydronic heating

1. Versatile & efficient energy sources

A lot of heaters are surprisingly wasteful, but hydronic heaters use gas boilers, which can be as much as 95% efficient. The water that is circulated through the home is first heated inside the boiler – which can be powered with an electric, geothermal, natural gas, solar, or most commonly a gas-powered pump. With the ability to operate on several different power sources, the versatile nature of a hydronic system can be the perfect solution for even the most frugal or environmentally conscious of consumers. Safety: The fact that the external panels that radiates the heat doesn’t get hot enough to burn means small kids and innocent pets are safe being around a hydronic heating system.

Plus, being one of the more economical forms of heating, owners are able to set the temperature slightly lower than they normally would and still maintain the desired level of comfort.

Pro tip: Using radiators with low water content will save even more energy.

2. Reliability

With anything you install in your home, you need it to be reliable. But, it is a bonus when you find a reliable unit that is also low maintenance. Hydronic heating offers that solution.

Aside from the power options, the reliability and effiiciency of a hydronic heating unit become apparent when you have the ability to set temperatures based on the area of the home you want to be heated. Hydronic heating works by using zoning, heating only the areas of the house that are most used, rather than warming areas where no one is. You control the thermostats that maintain the temperature, so you’re always comfortable. Hydronic means water, but none is wasted in the cycling system that recirculates well enough so that you only add a bit of water once a year.

3. Safe for the whole household

Unlike other heating units, the hydronic heating system does not use fans to blow the heated air. Without these fans circulating things like allergens, dust, bugs, and pollen that can irritate allergies or asthma conditions, your home’s air will be cleaner. Hydronic heating gently warms the water, which circulates to radiators for a calm and healthy environment that’s neither humid nor dry.

In addition to being allergen-friendly, hydronic heating also poses very little by way of a fire hazard, is safe to touch and there are no electrical connections to worry about.

4. Comfort

The gentle, spreading and even heat of hydronic heating makes it especially comfortable. No more bursts of oppressively hot air. Instead, the warmth radiates up through the floor to strategically located radiators for a constant and consistent temperature. If the air starts to go cool or get too warm, the specialty thermostats recognise the change and immediately adjust the temperature. You can leave the heater running all through the cold season without feeling uncomfortable about the air or the bills.

5. It looks good

Most people expect their heating systems to be a bit of an eyesore, but the radiators that are used with hydronic heating systems are available in a wide variety of colours, designs and styles to compliment your decor. If you’re not into the decorative radiators, you can opt for the floor heating, which is completely hidden from view and located within the piping beneath the floorboards. Stylish and practical, hydronic heating is poised to completely overtake other systems.

Modern bathroom with black heated towel rack
Hydronic heated radiators come in a variety of designs and colours / Source: Shutterstock

Different types of hydronic heating

There are a number of options when it comes to hydronic heating. Aside from what energy source you’ll use, the other main choice is between hydronic floor heating and hydronic wall heaating.

Hydronic wall heating

In this type of hydronic heating the hot water runs through pipes to these radiators or panels on the walls throughout the home. This is the most economical version because installation won’t require removing and replacing flooring.

Hydronic floor heating

Hydronic floor heating warms the floor of your home by heating the pipes beneath the surface. The pipes heat will warm the floor, making the whole room warmer as the heat rises. Whether your floor is made of slabs, screed or timber, it will work well with hydronic floor heating. There are a few different types of hydronic floor heating:

Slab hydronic floor heating: In this system, the heating system is laid directly into the concrete slab of the floor. Rugged plastic pipes joined with leak-proof fittings distribute the heated water throughout the house. The temperature of the system is controlled with specially-designed air-sensing thermostats. A slab hydronic system may take as long as a day or two to sufficiently warm the slab flooring, but once it has begun, the system will continuously radiate heat throughout the room during the entire winter.

Screed hydronic floor heating: This system works in a similar way to slab hydronic floor heating, except that the plastic pipes are placed on the topping screed of the concrete flooring, rather than embedded inside it. This system mitigates construction delays and is much quicker to install, because the pipes arent installed directly within the poured concrete. In addition, a screed hydronic system heats up and cools down much more quickly because of the pipes being on top.

You can also choose to have hydronic floor heating installed underneath battened timber floors. This type of system uses plastic pipes that are installed over insulation panels directly below the floorboards. The pipes run securely through the battens, and the water temperature is controlled by a floor thermostat. The difference, however, is that this type of thermostat is typically set at a maximum 27 degrees Celsius so as not to damage the timber floors.

In addition to timber and concrete slab flooring, hydronic floor heating can be used under tiles, linoleum, rugs and carpeting.

Which hydronic heating system is right for you?

So what do you need to consider when choosing a hydronic heating system? It depends on a few things, the most important of which is how you power your boiler. Youll need to check the advantages and disadvantages of each. An example of this is that although solar power is the cheapest option, a backup may be needed for when it doesnt provide your home with as much energy as it needs. Gas is also fairly cheap and comes with a number of choices, such as LPG or natural gas. On the other hand, the price of gas can vary over time and may become more expensive in the following years.

Finally, it is worth considering the aesthetics of your boiler. The great thing about hydronic floor heating is that it is invisible – you wont see any evidence of it after installation is complete. With radiators, panels will be visible around the room, but you can choose what style you like. In some ways, this can really enhance a rooms appearance.

When considering installing this heating technology, it is important to work in conjunction with an architect or designer to ensure it will fit with your new home design. If planning to instal it in an existing home, work closely with a hydronic heating company. The company can help you decide the location for the instal, the type of system, the number of heating zones, the location of thermostats and the ideal temperatures achieved from the heating.

Installing hydronic heating

Since hydronic heating is a special type of system, it must be installed by a registered expert. The supplier should be able to provide an installer to construct the boiler (needed for heating the water), pipe work (floor or walls), radiator, temperature sensors, and thermostats.

Installation costs will depend on a variety of factors so you should therefore assess your personal requirements and budget, and have a specialist design a system that will meet your needs. He or she can also choose the ideal method of powering the system, which will reduce running costs. Always ask for a quote before work begins.

While it’s best to install hydronic heating during a new home build, it can also be retrofitted if required.

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Heating & cooling

Can you retrofit hydronic heating?

Many homeowners are eager to know if they can retrofit hydronic heating to their existing home. While you’ll often hear that it’s recommended to install a hydronic system during the building stage, it’s still possible to retrofit a system and reap the benefits of hydronic heating at any point. Here, we’ll take you through the process of how to retrofit hydronic heating in your home.

What is hydronic heating?

Hydronic heating is a system that uses an isolated boiler to heat water. The water is then distributed throughout the walls and floors of a home through a closed pipe system.

Checking for access to pipework

When building a new home, hydronic heating installers can place the pipework in the best positions to achieve maximum convenience and efficiency. However, with existing homes, installers need to work around your pipework as it currently stands and find the best ways to reach it given the structure and foundations of your home. Because this is a more involved and lengthy process, it can end up being an expensive process.

Depending on how your home has been built, an installer may need to access the pipework via the ceiling and walls, or under the house. If there is sufficient crawl space under your home, you may be able to install underfloor heating pipes to the floor’s underside, in between the floor’s joists.

Cosy winter living room
Source: Shutterstock

However, when there isn’t sufficient crawl space, all floor coverings will need to be removed to uncover the joists and lay new pipes from above.

When retrofitting hydronic panel radiators, it’s crucial you have underfloor access, as this is where the pipework needs to run. While fitting off of the new panels is easy, it’s possible the installer will need to rip up some of your flooring to gain complete access, so you will need to take into consideration the cost of re-laying and patching up parts of your flooring.

Assessing suitability of floor coverings 

But beware – even if you can easily access all necessary pipework, your existing floor coverings may not be the most suitable for underfloor hydronic heating.

An underfloor heating system’s pipework needs to be able to effectively transfer heat to the floor surface. If the floor covering is not an efficient conductor of heat (i.e. it doesn’t store the heat well), then you won’t be able to feel the warmth coming through. Furthermore, unsuitable floor coverings like solid timber, can warp, bend or even crack due to the moisture and temperature changes in the system. Many installers will recommend ceramic and stone tiles, as they’re excellent conductors of heat. Make sure you consult with a flooring expert in your area before making this major decision.

It’s extremely important to discuss flooring options with your installer before you proceed with a retrofit of an underfloor system, as the wrong floor coverings could result in an inefficient system, or even damaged floors. In fact, selecting suitable flooring is the key to successfully retrofitting an underfloor system.

Investing in proper insulation

The importance of proper insulation throughout the home cannot be overstated. No matter how advanced or expensive your system is, it simply won’t work if all the heat escapes through the floors and walls. As such, it’s vital you invest in insulation battens to minimise heat loss. What’s more, hydronic heating works at much lower temperatures than other conventional heating systems, so even the smallest bit of heat loss can make a big difference to your household’s comfort.

Accommodating for the increase in floor height 

In some cases, you might be able to install a special underfloor heating panel directly on top of your existing flooring, without the need of ripping it all up. While these underfloor panels are extremely convenient, they do add approximately 15mm to your floor height, and that’s before your new flooring has been applied on top. While this may sound like a minimal change, even just a slight increase in floor height can affect the placement of skirtings and the height of doors around the home. As such, you may need to do a bit of readjusting and planning to accommodate for this change, such as adding a step to adjoining rooms, or planning down wooden doors.

Finding the right time to install

Due to the expense of installing a new system, it’s important you give yourself time to do your research on which system is best for you, and to find a trustworthy installer. If you leave it too close to wintertime, you may find yourself making quick decisions without having done any proper research, which could have disastrous consequences. Plus, installation of some systems can be a lengthy process, and you don’t want to be shivering through the colder months without any form of heating at all.

For this reason, spring may be the most sensible time to begin your research and install a new system – be it a hydronic system or otherwise. Planning your installation ahead of the cooler months may also mean you can find cheaper deals and more competitively priced systems. Installers are also less likely to be booked out at this time of year, so you won’t have to wait as long to get going.

Wrap up

If you’ve missed the opportunity to install hydronic heating while building your home, retrofitting a system is nevertheless a viable option. But keep in mind that it isn’t as simple as laying down some pipework and switching it on. There’s extensive preparation involved, and it’s likely to be a costly exercise, given you’ll be ripping up floors and installing new ones. And if you’re retrofitting panel radiators, you’ll also have to factor in their purchase cost, which can be significant given most homes have several radiators.

With that in mind, many homeowners find that the initial cost of retrofitting a system is worth the comfort it delivers. Plus, hydronic heating is extremely energy efficient, and could help you make significant savings in household energy bills in the long term.

Remember, retrofitting hydronic heating is certainly a complex task, and should only be entrusted to the expertise of licensed professionals who have the right tools and experience to conduct a proper installation.