Welcome Guest ( Log In | Register )

52 Pages « < 20 21 22 23 24 > » Bottom

Outline · [ Standard ] · Linear+

 Solar Water Heater

views
     
ozak
post Aug 4 2013, 11:13 PM

10k Club
********
All Stars
17,022 posts

Joined: Jan 2005


You reading history lah.
firestream
post Aug 26 2013, 12:08 PM

Getting Started
**
Junior Member
50 posts

Joined: Sep 2005
Read the whole history yet only find a lot of marketing talk.

Got an offer between Solar power & summer . comparing spec and it's a bit confuse.

Summer , 300 litres , ~ 66 gallons
1) outer case - Zincalume
2) riser tube - 6 copper tubes
3) absorber area = 2 m2/ planel (Is that mean 2 panel = 4 m2 ?)

Solar power , 270 litres , ~60 gallons
1) Outer case - Stucco Aluminium
2) Riser Tube - 10 copper tubes
3) Absorber Area = 2.97m2

So is solar power have a smaller collector/absorber area compare to summer ?

ozak
post Aug 26 2013, 12:36 PM

10k Club
********
All Stars
17,022 posts

Joined: Jan 2005


QUOTE(firestream @ Aug 26 2013, 12:08 PM)
Read the whole history yet only find a lot of marketing talk.

Got an offer between Solar power & summer . comparing spec and it's a bit confuse.

Summer , 300 litres , ~ 66 gallons
1) outer case - Zincalume
2) riser tube - 6 copper tubes
3) absorber area = 2 m2/ planel (Is that mean 2 panel = 4 m2 ?)

Solar power , 270 litres , ~60 gallons
1) Outer case - Stucco Aluminium
2) Riser Tube - 10 copper tubes
3) Absorber Area = 2.97m2

So is solar power have a smaller collector/absorber area compare to summer ?
*
What marketing talk? Can't find usefull infor here?

The size depend on how many person use in your house.
firestream
post Aug 26 2013, 02:07 PM

Getting Started
**
Junior Member
50 posts

Joined: Sep 2005
QUOTE(ozak @ Aug 26 2013, 12:36 PM)
What marketing talk? Can't find usefull infor here?

The size depend on how many person use in your house.
*
Sorry, shd be more specific . Information like power consumption calc & roof support , piping is useful. However, I can't find more useful info like the panel material , size comparison of different brand as all this affect efficiency.


simplety
post Sep 3 2013, 01:27 AM

Getting Started
**
Junior Member
147 posts

Joined: Apr 2009


Hi Ozak, WeiKee,
Went to MicroSolar 'showroom'. It's actually a very old house in ss14, sadly quite rundown too.
I am a bit concerned about the reliability of the supplier. icon_question.gif Can you help explain why you think MicroSolar is still the best?
They pass me a bunch of brochures which looks more technical than what I can understand.
rclxub.gif doh.gif
weikee
post Sep 3 2013, 08:46 AM

10k Club
********
All Stars
12,019 posts

Joined: Jan 2003
QUOTE(simplety @ Sep 3 2013, 01:27 AM)
Hi Ozak, WeiKee,
Went to MicroSolar 'showroom'. It's actually a very old house in ss14, sadly quite rundown too.
I am a bit concerned about the reliability of the supplier.  icon_question.gif  Can you help explain why you think MicroSolar is still the best?
They pass me a bunch of brochures which looks more technical than what I can understand.
rclxub.gif  doh.gif
*
You should ask or raised your concern to them not us. Their marketing very bad. But the product I know is good. I been there 3 years ago very simple place. some brand we pay for advertising not quality.
ozak
post Sep 3 2013, 09:00 AM

10k Club
********
All Stars
17,022 posts

Joined: Jan 2005


QUOTE(firestream @ Aug 26 2013, 02:07 PM)
Sorry, shd be more specific . Information like power consumption calc & roof support , piping is useful. However, I can't find more useful info like the panel material , size comparison of different brand as all this affect efficiency.
*
For more techincal detail, you have to google. Or look for some brand on their website. Microsolar have a pretty good technical comparison on their site.

Here we mostly question and answer. And talk kok also. tongue.gif
ozak
post Sep 3 2013, 10:37 AM

10k Club
********
All Stars
17,022 posts

Joined: Jan 2005


QUOTE(simplety @ Sep 3 2013, 01:27 AM)
Hi Ozak, WeiKee,
Went to MicroSolar 'showroom'. It's actually a very old house in ss14, sadly quite rundown too.
I am a bit concerned about the reliability of the supplier.  icon_question.gif  Can you help explain why you think MicroSolar is still the best?
They pass me a bunch of brochures which looks more technical than what I can understand.
rclxub.gif  doh.gif
*
This 1 we said, good thing don't show you easlly. tongue.gif

It is site double storey house right? They told me this is account office. hmm.gif

Anyway, for solar heater most important thing to look for is the efficiency to generate hot water. How hot the water can generate from the lowest enviroment temperature. Let say that day is rainy day with outside temperature is 25c. Your solar heater that day can boil the water to 50c from the 25c enviroment. That is 100% efficiency. Another efficiency is the water temperature. A cold water maybe 15c can boil up to 60c or higher on rainy day.

If that solar heater can generate 90c water from 0c temperature enviroment, I buy the heater back and put it at my hall to pray it as a god. notworthy.gif

We need hot water during cool day and cool water during hot day. But solar heater is opposite. So efficiency is important.

Another thing is, if the solar heater is efficiency enough, you don't need backup heater to stick inside the tank. All the brand accept microsolar have a backup heater incase no hot water during rainy day. Does that tell me the heater is not efficiency enough. hmm.gif

This pictuer tell you a thousand word. --> http://www.microsolarsystem.com/ Why a resort on top of the mount kinabalu will choose this solar heater? Can this heater generate hot water enough in the enviroment which the whole day is damn cold ? This solar heater don't have electrical heater to backup somemore.

Microsolar have pattern technology on their product. They got 1 technology inside the tube which increase the temperature efficiency compare others. Because of this pattern, others brand local cannot copy and adopt into their product. That make the different.

Hope you can understand the techincal explain.
simplety
post Sep 4 2013, 01:51 AM

Getting Started
**
Junior Member
147 posts

Joined: Apr 2009


QUOTE(ozak @ Sep 3 2013, 10:37 AM)
This 1 we said, good thing don't show you easlly. tongue.gif

It is site double storey house right? They told me this is account office. hmm.gif

Anyway, for solar heater most important thing to look for is the efficiency to generate hot water. How hot the water can generate from the lowest enviroment temperature. Let say that day is rainy day with outside temperature is 25c. Your solar heater that day can boil the water to 50c from the 25c enviroment. That is 100% efficiency. Another efficiency is the water temperature. A cold water maybe 15c can boil up to 60c or higher on rainy day.

If that solar heater can generate 90c water from 0c temperature enviroment, I buy the heater back and put it at my hall to pray it as a god.  notworthy.gif 

We need hot water during cool day and cool water during hot day. But solar heater is opposite. So efficiency is important.

Another thing is, if the solar heater is efficiency enough, you don't need backup heater to stick inside the tank. All the brand accept microsolar have a backup heater incase no hot water during rainy day. Does that tell me the heater is not efficiency enough. hmm.gif

This pictuer tell you a thousand word. -->  http://www.microsolarsystem.com/ Why a resort on top of the mount kinabalu will choose this solar heater? Can this heater generate hot water enough in the enviroment which the whole day is damn cold ? This solar heater don't have electrical heater to backup somemore.

Microsolar have pattern technology on their product. They got 1 technology inside the tube which increase the temperature efficiency compare others. Because of this pattern, others brand local cannot copy and adopt into their product. That make the different.

Hope you can understand the techincal explain.
*
Thanks! Perfectly understand!
icon_idea.gif
But still concern about their reliability. smile.gif promised to call me back yesterday, till now no one called. Ish ish....
BTimes
post Sep 4 2013, 06:25 AM

Enthusiast
*****
Senior Member
916 posts

Joined: Jan 2013
I think the most important is the seal between the joints. Once they start to leak, the parts will corrode and the system is gone. IMHO, China has the best solar water heater manufacturers due to market size. Many companies buy from them and relabel.
ozak
post Sep 4 2013, 09:43 AM

10k Club
********
All Stars
17,022 posts

Joined: Jan 2005


QUOTE(simplety @ Sep 4 2013, 01:51 AM)
Thanks! Perfectly understand!
icon_idea.gif
But still concern about their reliability. smile.gif promised to call me back yesterday, till now no one called. Ish ish....
*
No need buy that good 1 lah. Normal other brand good enough. Most of the day in here is sunny day.

This microsolar heater also look ugly ontop the roof. My friend install this microsolar for 6person ontop his roof. While his whole household is only 4person. doh.gif Freaking big the heater. Like spaceship landing on his roof. biggrin.gif
sbd
post Sep 16 2013, 12:20 AM

Enthusiast
*****
Senior Member
707 posts

Joined: Feb 2005


QUOTE(simplety @ Sep 3 2013, 01:27 AM)
Hi Ozak, WeiKee,
Went to MicroSolar 'showroom'. It's actually a very old house in ss14, sadly quite rundown too.
I am a bit concerned about the reliability of the supplier.  icon_question.gif  Can you help explain why you think MicroSolar is still the best?
They pass me a bunch of brochures which looks more technical than what I can understand.
rclxub.gif  doh.gif
*
Have used MicroSolar for two of my bungalows and recommended to my brother too. The founder/owner, Teoh is a great inventor but a hopeless businessman. For sales orders, their documentation is like signing a sales and purchase agreement. Also for warranty they won't come running to you unless you deposit money into their bank account first. If it is covered under warranty then they will refund you otherwise if it is your own problem, they will deduct charges. They don't do business like the others. this is what happens when a promising inventor goes into business!

I remember once when I wanted to install a new roof so I had to remove the MicroSolar first, they and their contractor were very expensive, asking thousands. Finally Solar Wave people helped me solve MicroSolar!

After that, for newer projects I have installed Solar Wave and i think for my latest project I am going to try Solar Power.

But I will tell you one thing, on really sunny days, the hot water coming from MicroSolar has steam and can scald you if you're not careful.

This post has been edited by sbd: Sep 16 2013, 04:06 PM
kokmengng
post Sep 25 2013, 02:55 PM

Enthusiast
*****
Senior Member
882 posts

Joined: Jan 2008
Anyone using Summer? How is it compare to Solar Power? Please comment. smile.gif

This post has been edited by kokmengng: Sep 25 2013, 02:59 PM
TSzheilwane
post Sep 25 2013, 03:38 PM

Look at all my stars!!
*******
Senior Member
4,184 posts

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
well all these spec and info are very confusing for end users, i gonna move in my new house next two months and i will do some test and upload some videos online smile.gif Already installed Solar Power U80 but haven got the chance to test it yet

I personally tested Solar Power L60 (panel type) in the afternoon if i turn on the mixer max to hot, it has steam also. If u guys got anything that you wan me to test or video, jus PM me

A solar heater is one of the biggest investment for a house [kitchen cabinets highest investment smile.gif ], so i bliv we will need something which is reliable and could provide good after sales service. There are many solars in the market and there are many companies that already closed down. Solar Power (the only brand that we are selling), Summer & Solar Mate are one of the oldest companies in the market which is still standing

This post has been edited by zheilwane: Sep 25 2013, 03:45 PM
stevie8
post Sep 25 2013, 04:25 PM

Regular
******
Senior Member
1,365 posts

Joined: Jun 2009
QUOTE(zheilwane @ Sep 25 2013, 03:38 PM)
well all these spec and info are very confusing for end users, i gonna move in my new house next two months and i will do some test and upload some videos online smile.gif Already installed Solar Power U80 but haven got the chance to test it yet

I personally tested Solar Power L60 (panel type) in the afternoon if i turn on the mixer max to hot, it has steam also. If u guys got anything that you wan me to test or video, jus PM me

A solar heater is one of the biggest investment for a house [kitchen cabinets highest investment  smile.gif ], so i bliv we will need something which is reliable and could provide good after sales service. There are many solars in the market and there are many companies that already closed down. Solar Power (the only brand that we are selling), Summer & Solar Mate are one of the oldest companies in the market which is still standing
*
Mine is Solar Mate have been using it since 2001. During 2010 the tank leak and claim warranty. The heater broken long time ago and never replaced. No need for heater just make sure the non return valves (vacuum valve especially) are replaced from time to time when you see water dripping from the roof.

I bought 2 china made for my sisters' houses come with vacuum tube. Cheap but have yet to install. It is cheap and the built look efficient but not sure it is durable. I tested with one tube fill up with water and place it under hot sun. Within minutes the water is damn super hot. dare not test longer and took it inside house and let it cool itself. Service is not available. The reason I bought it is because it is so cheap and if it broken just throw and change a new one. Also no one is going to install for you. Installation is RM600 to RM1.5k a unit. If you are not adventurous and you cannot DIY installation, just buy Summer or Solar Mate for service is important to you but not me, I can diy. Micro Solar, from the posts, such lousy business service you better forget about it.

Pictures of the model I bought

Attached Image Attached Image

Attached Image

And 2 sheet of installation instruction and if you cannot understand these 2 sheet of instruction, don't ever think of buying.

Attached Image Attached Image
stevie8
post Sep 25 2013, 04:29 PM

Regular
******
Senior Member
1,365 posts

Joined: Jun 2009
The picture show 6 -8 persons. that is for cold climate. For us her hot climate 10 -14 person is not a problem as our cold water is already warm so need little hot water to mix.
Yamma
post Sep 25 2013, 05:11 PM

Enthusiast
*****
Senior Member
736 posts

Joined: Jun 2012
QUOTE(stevie8 @ Sep 25 2013, 04:25 PM)
Mine is Solar Mate have been using it since 2001. During 2010 the tank leak and claim warranty.  The heater broken long time ago and never replaced. No need for heater just make sure the non return valves (vacuum valve especially) are replaced from time to time when you see water dripping from the roof.

I bought 2 china made for my sisters' houses come with vacuum tube. Cheap but have yet to install. It is cheap and the built look efficient but not sure it is durable. I tested with one tube fill up with water and place it under hot sun. Within minutes the water is damn super hot. dare not test longer and took it inside house and let it cool itself. Service is not available. The reason I bought it is because it is so cheap and if it broken just throw and change a new one. Also no one is going to install for you. Installation is RM600 to RM1.5k a unit. If you are not adventurous and you cannot DIY installation, just buy Summer or Solar Mate for service is important to you but not me, I can diy. Micro Solar, from the posts, such lousy business service you better forget about it.

Pictures of the model I bought

Attached Image Attached Image

Attached Image

And 2 sheet of installation instruction and if you cannot understand these 2 sheet of instruction, don't ever think of buying.

Attached Image Attached Image
*
how much you bought for the system?
Solar freak
post Sep 25 2013, 06:20 PM

Getting Started
**
Junior Member
202 posts

Joined: Aug 2013
Generally Solar water Heather for Double storey house will cost RM 4k above and not inclusive Copper piping to connect to bathrooms
Solar freak
post Sep 25 2013, 06:22 PM

Getting Started
**
Junior Member
202 posts

Joined: Aug 2013
Generally use water Heater tank more economical

stevie8
post Sep 25 2013, 10:31 PM

Regular
******
Senior Member
1,365 posts

Joined: Jun 2009
QUOTE(Yamma @ Sep 25 2013, 05:11 PM)
how much you bought for the system?
*
You never believe this. RM1800. This is not price from manufacturer, this is Malaysia retail price! Besides, there are 2 spare tubes for every unit. The heaters are meant for US market.

So, suggest zheilwane importing one container so as we have someone who can provide after sales service.

Installation within klang valley with standard length pipe RM600. Out of town RM1k to RM1.5k for 1/2 day work and travelling.

52 Pages « < 20 21 22 23 24 > » Top
 

Change to:
| Lo-Fi Version
0.0623sec    1.15    7 queries    GZIP Disabled
Time is now: 19th December 2025 - 05:30 PM