Warmup Radiant Heating Blog

In Floor Heating Insulation Boards – Why Use Them? - April 11, 2014 by Dave Mckiever

Why In Floor Heating Insulation Boards from Warmup are a great investment.

Warmup Insulation Board - 500x500

Consumers are actively encouraged to insulate their homes as this leads to energy savings. While not always ‘required’, insulating is almost always ‘better’. That is why Warmup, the only Primary Heating Radiant Electric supplier is actively promoting and delivering insulation boards on many of its jobs. Installing the heaters on top of an insulation board can bring significant savings as it improves the heat up time of the heating system and results in lower energy bills and energy usage.


  • Boards replace cement boards: no dual expense needed. However, they are not aimed at resolving non-structural floors or compensate for excessive deflection.
  • Boards are ¼” thick
  • They act as a 92% thermal break: that means that only 8% of the heat can be “lost” downwards.
    • Up to 25% of the heat is lost over ¾” plywood
    • Up to 67% of the heat is lost over concrete slabs

Energy efficiency: less heat up time

The reduced heat up time is the main source for energy savings when using under floor heating insulation boards.

The insulation boards reflect the heat upwards into the flooring material and stop the heat from absorbing and escaping to the sub floor. The boards provide a high thermal barrier to cold rising from the subfloor, helping the floor to keep warm even when the desired room temperature has been achieved.

The boards, made from waterproof extruded polystyrene, have a high thermal insulation property. Also, the heat up period for a floor to reach the desired temperature can be cut from as much as 2.5 hours down to just 20 minutes. This means that the energy required by the heating system is required for shorter periods, in our tests, about 78% less time “on.”

Insulation board - heat up time chart

Cost reduction: less heat required

Another important source of savings, both on materials and in consumption costs, is the reduced amount of wattage required to achieve desirable temperatures. When you need to compensate for a drafty crawl space or a cold basement slab, you need to oversize the heater (more cable, more watts). When the heat loss is reduced (insulation boards), less material and cable is required. In the example of the NADWS cable system from Warmup, you can widen the spacing from 2-1/2” or 3” up to 4” spacing. This can lead to 30% to 40% savings on materials alone. This is especially valuable for modern installations powered by solar systems, or in remodels where the supply power is limited.

Design Advantage

Warmup Insulation Boards are only ¼ “thick.  This reduces the impact on your floor levels. They are 100% watertight, ideal for “wet” areas, and cut with a simple utility knife.

Staining & Painting Concrete – Pros & Cons - April 2, 2014 by Dave Mckiever


Whichever you decide to do, one thing is for sure, either option is better than looking at the ole’ plain grey concrete floor .  Since there is so much information out there on the pros and cons of painting or staining concrete, how to do it, who should do it and so forth, we thought we’d help with a few links and ideas.  To help simplify things, let’s start with some advantages that everyone in the business of making concrete floors look pretty agree upon:

  • Green – Not the color, but with regards to being good for the environment.  No trees are cut down, no unused materials that contribute to the mountains of trash that already exist, and of course concrete is recyclable.  Follow these links for more information:



  • Health Benefits – Concrete flooring is a good option for those with allergies in that they do not provide a welcome environment for dust mites.  See this link on the HGTV website – http://www.hgtvremodels.com/home-systems/use-concrete-slab-as-finished-flooring/index.html
  • Can Last Forever – This type of flooring is durable and can handle punishment, although if you juggle sledge hammers for a living, and are not that good, you will have some cracks here and there.  Nonetheless, at least you wouldn’t have to replace the whole floor.
  • Heat Is Possible – Concrete floors don’t have to be cold if you insulate and install radiant heat underneath.  Follow this link for details: http://www.warmup.com/us/in-slab-heating.phtml.  If you have any questions regarding heating under concrete flooring, feel free to call us at 1-888-927-6333.

Now for the cons that some have expressed about the concrete floor option:

  • Echo Chamber Effect – Observations have been made that concrete floors help to transmit sound..sound…sound.  You might not want this effect.  However:  You can mitigate this effect through the use of throw rugs, wall coverings and drapes, or your own furniture.
  • Can Last Forever – I know, this was also mentioned as pro.  The con part is that if you stain your concrete floor you are stuck with your design.  If you decide to paint a concrete floor it has been pointed out that it is easier to re-paint and re-seal your concrete floor, but that doesn’t make it easy.  Of course there is an escape clause in the form of installing wood, carpet or vinyl after the fact.  Follow this link to see how this can be accomplished: http://www.familyhandyman.com/DIY-Projects/Flooring/Wood-Flooring/installing-wood-flooring-over-concrete/View-All
  • Cost – Most say that this is not a con at all since concrete is inexpensive when compared to other flooring options.  However, when you get into custom designs your cost goes up and may not be so cheap after all. Then there is the labor cost.  While many DIYers say that while painting concrete is not that hard to do, you might still decide to hire a professional which adds to the bottom line.  Pretty much everyone who advocates staining concrete says to definitely go to a professional for installation.  Even DIY enthusiasts seem to agree on that point.   Shop around and get some quotes for professional installations.  Follow this link for a guide to what you can expect to pay for a professional installation: http://concrete.networx.com/info/concrete-floor-stain-costs/
  • Cold – In the summer a concrete floor will keep your floor a little cooler if out the direct rays of the sun.  This is a good thing. But what about during the winter?  There’s the rub.  Cold weather means cold concrete if you do not plan to insulate and install radiant heating underneath.

So even though there is more information out there on this subject, this should at least get you on the road to making a decision regarding whether to go with a nicely painted or stained concrete floor.  It is definitely worth considering, especially with radiant heat!

Tiling Under or Around the Toilet? - March 28, 2014 by Dave Mckiever



From experienced tile professionals to part-time DIYs, there are differing opinions on whether to tile under or around the toilet.  While either method will work, the vast majority seems to favor tiling under the toilet (check out the forum links below).  Here are some top reasons why:


  • Less cutting involved – less frustration trying to cut the tile up to the toilet.
  • Easier to replace the toilet down the road especially if it has a different footprint.
  • End result looks more professional.


We had a chance to get some feedback from Phil Green of Edge Strip Kits who has been a tile setter for over 42 years.  He states, “As a professional Tile setter for over 42 years, I would say that I have never tiled AROUND a toilet. It’s just easier to pull it and then tile under it. This allows the toilet to be changed in the future with no additional call back for tile repairs.  Another good reason for pulling the toilet and not cutting around it would be to replace the wax ring at this time. Many simple leaks can easily be repaired by changing the wax ring seal. If you tiled up to the toilet, you would not be able to notice this small leak until extensive damage had occurred.”








If you are considering laying tile for your bathroom, this would be the time to also consider adding Warmup electric radiant floor heating to keep those tiles luxuriantly warm during chilly days.  A complete floor heating solution can cost as little as $372.00 (includes advanced 3iE Energy Monitoring Thermostat with GFCI) depending on your needs.  Call us for details.




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Snazzy Bathroom Remodeling with Warmup In-Floor Heating - October 1, 2013

How often have you searched for “bathroom ideas” on the internet?  This may not come as a surprise to you, but the bathroom is the most common rooms in one’s home to receive the “fixer-upper” treatment according to the National Assn. of Home Builders.  There is no definitive way to determine this, but some sources […]

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