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In a message dated 2/10/14 17 18 33, npdrs@maui.net writes:<BR>
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<BR>
<BLOCKQUOTE CITE STYLE="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px" TYPE="CITE"></FONT><FONT COLOR="#000000" FACE="Geneva" FAMILY="SANSSERIF" SIZE="2">There is currently "high volume<BR>
water pump" installed; does this means I should still use 321C style<BR>
thermostat or 351W version?<BR>
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>>>Water pump has no bearing on thermostat selection UNLESS it's one of the Weiand pumps that blocks off the internal water bypass (which is a dumb thing to do IMHO). There is certainly never any harm in using the proper 351C thermostat, even if the passage is blocked, whereas there can be tremendous harm using a 351W unit in a 351C that doesn't have the passage blocked.<BR>
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When in doubt, just use the 351C unit. <BR>
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Mike</FONT><FONT COLOR="#000000" FACE="Geneva" FAMILY="SANSSERIF" SIZE="2"></FONT></HTML>