Methods 8 & 9: Temperature Methods
{{widget type=”Magento\Cms\Block\Widget\Block” template=”widget/static_block/default.phtml” block_id=”568″}}
Method 8: Temperature Rise
| Temperature Rise |
Rating | Comments |
|---|---|---|
| Overall Value | 
|
Useful as a check of BTU. Not accurate for flow measurement due to variation based on placement of temp probes and several assumptions needed to convert temp rise to CFM. |
| Recognized by Standard 310 | No | Not recognized by ANSI/ACCA/RESNET. |
| Residential Accuracy |
|
Can be very inaccurate due to placement of probes, assumptions in calculations. |
| Consistency |
|
Hard to get consistent results in residential across systems and different techs. |
| Equipment Cost |
$ | Price varies — but a basic measurement can be done very cost effectively. |
| Time (Min) | 5 to 20 | Measurements are quick but must take time to ensure system has run and that probe placement yields accurate temps. |
Method 9: Temperature Split
| Temperature Split |
Rating | Comments |
|---|---|---|
| Overall Value |
|
Useful as a check of BTU. Not accurate for flow measurement due to variation based on placement of temp probes and several assumptions needed to convert temp rise to CFM. |
| Recognized by Standard 310 | No | Not recognized by ANSI/ACCA/RESNET. |
| Residential Accuracy |
|
Can be very inaccurate due to placement of probes, assumptions in calculations. |
| Consistency |
|
Hard to get consistent results in residential across systems and different techs. |
| Equipment Cost |
$ | Price varies — but a basic measurement can be done very cost effectively. |
| Time (Min) | 5 to 20 | Measurements are quick but must take time to ensure system has run and that probe placement yields accurate temps. |
