Recent Posts

91

Snagging and defects / New house taking ages to warm up

« Last Post by CuriousAvocado on October 02, 2023, 10:11:41 pm »

Last weekend the temperature in the house dropped below 17C so I put the heating on to get the chill off (outside temperature was around 9C overnight). However it took almost 2 hours to get to 19C, and another hour to 20C! I don't think this is right for a new build so something must be wrong!

Some facts on the house:
-The house is a 4-bed detached with gas central heating.
-I've checked the radiator sizes and they're sized correctly for the rooms.
-The radiators are all hot to the touch with no cold spot.
-I've also checked the temperature at the flow & return pipes at the radiators (by touching with hands), and I can feel a distinct temperature difference so I think the balance is ok.
-The flow temp at the boiler is set to 70C
-The air permeability of the house is 4.7, which is within the requirement of 5

Everything seems to be fine on paper, which doesn't explain why the house takes so long to heat up!?
One thing I did notice is that during the heatwave this summer, the temp inside the house seems to be lower than the outside temp. I could feel a temp drop as soon as I enter the house, only managed to bring the inside temp up after opening all the windows and patio doors.

Can anyone suggest what is wrong with my house?

92

Energy / Re: Compliance with Part L 2022 changes

« Last Post by Newbuild on September 22, 2023, 05:53:15 pm »

As far as I would deduce, an oversize boiler would not use more gas. 
It would heat the water up quicker than a smaller boiler.
Once the room temperature was reached the thermostat would turn it off, probably much earlier than a smaller output boiler.

The regulations surrounding the boiler oversizing seem strange. I would also question why, a greedy housebuilder would specify and fit a larger, more expensive boiler than they are required by regulations to do.

You are not quite right there.

An over sized boiler often has a minimum modulation that can be far too high for the heat demand of the property for much of the year. The typical example would be a 30kwh combi that is only capable of modulation to 9kwh CH demand. 9kwh of heatloss at -3C is quite a significantly sized property and as such the boiler will cycle - the initial start up for most boilers invovled a full flame which uses more gas than just sitting at the correct modulation would be.

These boilers often have cash back at the wholesaler hence why you see them, also manufacturers offer silly rule of thumb specs like 40kwh = 10 radiators" and other such stupidity.

ON/OFF heating is not efficient in the majority of UK homes.

93

Do It Yourself / The Significance of British Standard Locks for Your Property

« Last Post by ktf52 on September 20, 2023, 11:27:18 am »

Secure Your Sanctuary: The Significance of British Standard Locks for Your Property

Introduction

Home security is paramount, and it starts with the basics—your locks. When it comes to safeguarding your property, British Standard locks stand as a hallmark of quality and security. In this article, we delve into the significance of British Standard locks, what they entail, and why they should be a priority for every homeowner.

What Are British Standard Locks?

British Standard locks, often referred to as BS locks, are locks that have been rigorously tested and certified to meet the security standards set by the British Standards Institution (BSI). The BSI is a reputable and independent organization that establishes stringent criteria for various products, including locks.

Levels of Security

British Standard locks are categorized into different levels of security, typically ranging from BS3621 to BS8621 and BS10621. These levels signify the lock's effectiveness in preventing unauthorized access. The higher the BS number, the more secure the lock is considered to be.

Why Choose British Standard Locks?

Deterrence: One of the primary functions of a lock is to deter potential intruders. British Standard locks are recognized for their robust construction and durability, which act as a formidable deterrent to burglars. The sight of these locks on your property sends a clear message that your home is well-protected.

Reliability: British Standard locks undergo rigorous testing procedures, ensuring their reliability and effectiveness in real-world scenarios. These locks are built to withstand various forms of tampering, providing homeowners with peace of mind.

Insurance Compliance: Many insurance companies require policyholders to have British Standard locks on their doors and windows. By installing these locks, you not only enhance your security but also maintain compliance with your insurance policy, potentially reducing your premiums.

Peace of Mind: Knowing that your home is secured by British Standard locks provides unparalleled peace of mind. You can rest easy, knowing that your family and belongings are well-protected, even when you're away from home.

Longevity: British Standard locks are designed for longevity. Investing in these locks is a wise choice, as they are less likely to deteriorate over time, ensuring that your home remains secure for years to come.

Versatility: British Standard locks come in various types and designs, making it easy to find one that suits your specific needs. Whether you prefer traditional mortice locks or modern cylinder locks, there's a British Standard option to fit your requirements.

Conclusion

In a world where security is a paramount concern, British Standard locks provide a reliable and effective solution to protect your property. These locks are more than just security measures; they are a symbol of quality, durability, and peace of mind. By choosing British Standard locks for your doors and windows, you are investing in the safety and security of your home, creating a fortress that stands up to the challenges of the modern world. In an era where the sanctity of our homes is more precious than ever, British Standard locks are your trusted allies in preserving your peace, privacy, and property.

94

Snagging and defects / Re: Air bricks and DPM ??

« Last Post by New Home Expert on September 14, 2023, 10:58:39 am »

If, and it is a big "if" there is a cavity tray, it would need to extend around the whole section of the perimeter where the dpc is not at least 150mm above ground level.
External wall DPC should be at least 150mm above finished ground level - a building regulation and warranty standard.  regulation.

No air brick should be below ground level. Normally they are 75mm above ground level to the bottom of the air brick.
In your case rainwater can and will seep under your suspended floor and could pool there.

Weep holes should be clear and open not blocked with mortar or screws!

95

Energy / Re: Compliance with Part L 2022 changes

« Last Post by New Home Expert on September 14, 2023, 10:52:02 am »

As far as I would deduce, an oversize boiler would not use more gas. 
It would heat the water up quicker than a smaller boiler.
Once the room temperature was reached the thermostat would turn it off, probably much earlier than a smaller output boiler.

The regulations surrounding the boiler oversizing seem strange. I would also question why, a greedy housebuilder would specify and fit a larger, more expensive boiler than they are required by regulations to do.

96

Snagging and defects / Re: Air bricks and DPM ??

« Last Post by AliceScott1943 on September 08, 2023, 08:59:45 am »

Hello, that air brick requires re positioning above ground level.
Water can track through the air brick from the ground and into your sub floor.

97

Snagging and defects / Re: Air bricks and DPM ??

« Last Post by DGarland on September 01, 2023, 10:01:37 pm »

Here is a picture showing one of the air bricks DPM being on top of the air brick.

98

Snagging and defects / Air bricks and DPM ??

« Last Post by DGarland on September 01, 2023, 09:57:35 pm »

Hi not sure if this is correct or not although the Building Control guys tells me it is acceptable.
The ground level at the far end of the property is 25mm below the DPM - this is OK as it has a cavity tray fitted?
Air bricks are almost half under the ground level - again this is fine and acceptable as it provides enough ventilation.
Weep holes are pointed - just stick a screw or something in them as this is part of the properties maintenance.
I am no builder and have no idea but something does not sound quite right with it all!??

Any help greatly appreciated

Thanks
Dan

99

Energy / Compliance with Part L 2022 changes

« Last Post by btjtaylor on August 31, 2023, 09:09:23 pm »

We moved into a new build property in September 2022

I have been trying to increase the efficiency of our central heating in preparation for the upcoming winter

I have done some reading into the builder's obligations regarding the heating system and building regulations, and found some non-compliance.

For the boiler commissioning sheet (Benchmark form), the installer has ticked that Part P is complied with and ticked the box for "weather compensation" and "smart thermostat". I found earlier in the week that the outdoor weather comp sensor is not connected to the boiler. And the controls are definitely not smart, it's just a basic programmer/thermostat. This is 100% a breach of regulations because these have been in place for sometime and I am confident of this - although I am not massively bothered because I will upgrade the boiler controls myself anyway.

The more serious annoyance for me is around the oversized boiler that has been fitted. The regulations were updated in June 2022 to include that "A heat loss calculation is carried out to ensure that the new boiler is not significantly oversized, and output set to match the calculated heat loss."

I calculate the heat loss of our property to require heating of somewhere between 3000w and 4500w (115m2 at 20-40w/m2). The boiler that is installed is a Baxi 36kw combi with a minimum heat output of 7.6kW! This is significantly oversized and (as far as I understand it) can't ever be made to run fully efficiently.

My question is - did these June 2022 regulations apply to our property? I am struggling to figure that one out. I want to throw the book at them as one of the reasons to purchase a new build is to benefit from modern, efficient heating, but as usual, the cowboys have scuppered that.

Thanks in advance

100

Snagging and defects / Re: Snapping/Cracking Noises Heard In Room Below

« Last Post by lukey on August 08, 2023, 01:17:39 pm »

Well builder has done 'something' but nothing that would fix microcracking and the issue still remains..... have followed up with the builder and will presumably have to go to the NHBC again.